Astec Bibliography Recent Citations using Astec GC and HPLC chiral columns

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A direct HPLC method for the resolution and quantitation of the R-(-)- and S-(+)-enantiomers of vigabatrin (γ-vinyl-GABA) in pharmaceutical dosage forms using teicoplanin aglycone chiral stationary phase. Al-Majed, Abdulrahman A., Journal of Pharmaceutical and Biomedical Analysis (2009), 50(1), 96-99.

A second-generation ionic liquid matrix-assisted laser desorption/ionization matrix for effective mass spectrometric analysis of biodegradable polymers. Berthod, Alain; Crank, Jeffrey A.; Rundlett, Kimber L.; Armstrong, Daniel W., Rapid Communications in Mass Spectrometry (2009), 23(21), 3409-3422.

A Tunable Ionic Liquid Based RC Filter Using Electrowetting: A New Concept. Nanayakkara, Yasith S.; Moon, Hyejin; Armstrong, Daniel W., ACS Applied Materials & Interfaces (2010), 2(7), 1785-1787.

A Validated HPLC Method for Separation and Determination of Promethazine Enantiomers in Pharmaceutical Formulations. Saleh, Ola A.; El-Azzouny, Aida A.; Aboul-Enein, Hassan Y.; Badawy, Amr M., Drug Development and Industrial Pharmacy (2009), 35(1), 19-25.

Analysis of optically pure β-phenylalanine produced by penicillin G acylase through HPLC. Li, Dengchao, Shipin Gongye Keji (2010), 31(5), 368-370.

Anion detection by ESI-MS using dicationic liquid salts. Armstrong, Daniel W., PCT Int. Appl. (2009), WO 2009103064 A1 20090820.

Antimony(III)-D, L-tartrates exhibit proton-assisted enantioselective binding in solution and in the gas phase. Wijeratne, Aruna B.; Spencer, Sandra E.; Gracia, Jose; Armstrong, Daniel W.; Schug, Kevin A., Journal of the American Society for Mass Spectrometry (2009), 20(11), 2100-2105.

Assessment of the complexation degree of camptothecin derivatives and cyclodextrins using spectroscopic and separative methodologies. Foulon, C.; Tedou, J.; Queruau Lamerie, T.; Vaccher, C.; Bonte, J. P.; Goossens, J. F., Tetrahedron: Asymmetry (2009), 20(21), 2482-2489.

Bonded ionic liquid polymeric material for solid-phase microextraction GC analysis. Wanigasekara, Eranda; Perera, Sirantha; Crank, Jeffrey A.; Sidisky, Leonard; Shirey, Robert; Berthod, Alain; Armstrong, Daniel W., Analytical and Bioanalytical Chemistry (2010), 396(1), 511-524.

CE-ESI-MS analysis of singly charged inorganic and organic anions using a dicationic reagent as a complexing agent. Lin, Xiuli; Gerardi, Anthony R.; Breitbach, Zachary S.; Armstrong, Daniel W.; Colyer, Christa L., Electrophoresis (2009), 30(22), 3918-3925.

Characterization of new R-naphthylethyl cyclofructan 6 chiral stationary phase and its comparison with R-naphthylethyl ß-cyclodextrin-based column. Kalikova, Kveta; Janeckova, Lucie; Armstrong, Daniel W.; Tesarova, Eva, Journal of Chromatography, A (2011), 1218(10), 1393-1398.

Chiral aspects of antihypertensive drugs. I. Beta-blockers, diuretics, and a2-adrenergics. Cizmarikova, Ruzena; Pechova, Iveta; Bruchata, Katarina, Farmaceuticky Obzor (2011), 80(1), 9-16.

Chiral drug analysis and their application. Nagori, B. P.; Deora, M. S.; Saraswat, P., International Journal of Pharmaceutical Sciences Review and Research (2011), 6(2), 106-113.

Chiral recognition mechanisms with macrocyclic glycopeptide selectors. Berthod Alain, Chirality (2009), 21(1), 167-75.

Chiral stability-indicating HPLC method for analysis of arotinolol in pharmaceutical formulation and human plasma. Sultan, Maha A.; Hefnawy, Mohamed M.; Al-Shehri, Mona M., Arabian Journal of Chemistry (2010), 3(3), 147-153.

Comparative evaluation of liquid chromatography versus gas chromatography using a β-cyclodextrin stationary phase for the determination of BTEX in occupational environments. Campos-Candel, Andreu; Llobat-Estelles, Maria; Mauri-Aucejo, Adela, Talanta (2009), 78(4-5), 1286-1292.

Comparison of enantioselective HPLC separation of structurally diverse compounds on chiral stationary phases with different teicoplanin coverage and distinct linkage chemistry. Honetschlagerova-Vadinska, Marie; Srkalova, Simona; Bosakova, Zuzana; Coufal, Pavel; Tesarova, Eva, Journal of Separation Science (2009), 32(10), 1704-1711.

Comparison of HPLC enantioseparation of substituted binaphthyls on CD-, polysaccharide- and synthetic polymer-based chiral stationary phases. Loukotkova, Lucie; Tesarova, Eva; Bosakova, Zuzana; Repko, Pavel; Armstrong, Daniel W., Journal of Separation Science (2010), 33(9), 1244-1254.

Comparison of stationary phases for packed column supercritical fluid chromatography based upon ionic liquid motifs: a study of cation and anion effects. Smuts, Jonathan; Wanigasekara, Eranda; Armstrong, Daniel W., Analytical and Bioanalytical Chemistry (2011), 400(2), 435-447.

Compositions and methods for cyclofructans as separation agents. Armstrong, Daniel W.; Ping, Sun; Breitbach, Zachary S.; Wang, Chunlei, PCT Int. Appl. (2010), WO 2010148191 A2 20101223.

Cyclofructan 6 based stationary phases for hydrophilic interaction liquid chromatography. Qiu, Haixiao; Loukotkova, Lucie; Sun, Ping; Tesarova, Eva; Bosakova, Zuzana; Armstrong, Daniel W., Journal of Chromatography, A (2011), 1218(2), 270-279.

Detection of a liquid explosive component and sensitizers using a nanopore probe. Jayawardhana, Dilani A.; Crank, Jeffrey A.; Zhao, Qitao; Armstrong, Daniel W.; Guan, Xiyun, Abstracts of Papers, 238th ACS National Meeting, Washington, DC, United States, August 16-20, 2009 (2009), ANYL-233.

Detection of nucleotides in positive-mode electrospray ionization mass spectrometry using multiply-charged cationic ion-pairing reagents. Dodbiba, Edra; Breitbach, Zachary S.; Wanigasekara, Eranda; Payagala, Tharanga; Zhang, Xiaotong; Armstrong, Daniel W., Analytical and Bioanalytical Chemistry (2010), 398(1), 367-376.

Determination of dextroisomer in Lamivudine by HPLC. Wu, Yi-hong; Zhang, Dan; Mao, Hui-ying; Tang, Li-hong, Huaxi Yaoxue Zazhi (2009), 24(1), 80-81.

Determination of impurity in L-alanine by HPLC. Wang, Yongqiu; Liu, Xueyan, Yingyong Huagong (2009), 38(6), 891-894.

Determination of ketamine enantiomers in plasma by HPLC. Shan, Lina; Shi, Xianbao; Guo, Bin; Wang, Yunfei; Zheng, Zhichang, Zhongguo Yaofang (2010), 21(18), 1670-1671.

Determination of rat plasma levels of sertraline enantiomers using direct injection with achiral-chiral column switching by LC-ESI/MS/MS. Rao, R. Nageswara; Kumar, K. Nagesh; Shinde, Dhananjay D., Journal of Pharmaceutical and Biomedical Analysis (2010), 52(3), 398-405.

Determination of residual clenbuterol enantiomers in swine urine by high performance liquid chromatography. Wu, Yin-Liang; Yang, Ting; Shan, Ji-Hao; Huangfu, Wei-Guo, Fenxi Huaxue (2010), 38(6), 833-837.

Determination of S,S-enantiomer in (1R,2R)-(-)-1,2-cyclohexanediamine by GC. Zhu, Sheng-liang; Song, Xiao-guang; Han, Bin; Zhu, Chuan-bin; Li, Yu-ru, Yaoxue Jinzhan (2009), 33(4), 174-177.

Determination of S-isomer in heptaplatin by HPLC. Yang, Xiao-ming; Zhao, Dong-mei; Liu, Qin-wei; Li, Yu-ru, Yaoxue Jinzhan (2010), 34(2), 85-88.

Development of a new HPLC method for the simultaneous determination of ticarcillin and clavulanic acid in pharmaceutical formulations. Tsou, Tai-Li; Lee, Chiu-Wey; Wang, Hsian-Jenn; Cheng, Ya-Chung; Liu, Yu-Tien; Chen, Su-Hwei, Journal of AOAC International (2009), 92(4), 1089-1094.

Development of an enantiomer-specific stable carbon isotope analysis (ESIA) method for assessing the fate of a-hexachlorocyclohexane in the environment. Badea, Silviu-Laurentiu; Vogt, Carsten; Gehre, Matthias; Fischer, Anko; Danet, Andrei-Florin; Richnow, Hans-Hermann, Rapid Communications in Mass Spectrometry (2011), 25(10), 1363-1372.

Development of new HPLC chiral stationary phases based on native and derivatized cyclofructans. Sun, Ping; Wang, Chun-Lei; Breitbach, Zachary S.; Zhang, Ying; Armstrong, Daniel W., Analytical Chemistry (Washington, DC, United States) (2009), 81(24), 10215-10226.

Digital microfluidic device using ionic liquids for electronic hotspot cooling. Moon, Hyejin; Bindiganavale, Shreyas; Nanayakkara, Yasith; Armstrong, Daniel W., International Conference on Nanochannels, Microchannels and Minichannels, Proceedings, 7th, Pohang, Republic of Korea, June 22-24, 2009 (2009), (Pt. A), 131-135.

Effective enantiomeric separations of racemic primary amines by the isopropyl carbamate-cyclofructan6 chiral stationary phase. Sun, Ping; Armstrong, Daniel W., Journal of Chromatography, A (2010), 1217(30), 4904-4918.

Enantiomeric resolution of a chiral sulfoxide series by LC on synthetic polymeric columns with multimodal elution. Lourenco, Tiago C.; Armstrong, Daniel W.; Cass, Quezia Bezerra, Chromatographia (2010), 71(5/6), 361-372.

Enantiomeric separation of chiral ruthenium(II) complexes using capillary electrophoresis. Jiang Chunxia; Tong Man-Yung; Armstrong Daniel W; Perera Sirantha; Bao Ye; Macdonnell Frederick M, Chirality (2009), 21(1), 208-17.

Enantioselective host-guest complexation of Ru(II) trisdiimine complexes using neutral and anionic derivatized cyclodextrins. Sun, Ping; MacDonnell, Frederick M.; Armstrong, Daniel W., Inorganica Chimica Acta (2009), 362(9), 3073-3078.

Enantioselective quantification of chiral drugs in human plasma with LC-MS/MS. Liu, Ke; Zhong, Dafang; Chen, Xiaoyan, Bioanalysis (2009), 1(3), 561-576.

Enantioseparation of nonproteinogenic amino acids. Winkler, Margit; Klempier, Norbert, Analytical and Bioanalytical Chemistry (2009), 393(6-7), 1789-1796.

Enhanced comprehensive two-dimensional gas chromatographic resolution of polychlorinated biphenyls on a non-polar polysiloxane and an ionic liquid column series. Zapadlo, Michal; Krupcik, Jan; Kovalczuk, Tomas; Majek, Pavel; Spanik, Ivan; Armstrong, Daniel W.; Sandra, Pat, Journal of Chromatography, A (2011), 1218(5), 746-751.

Enzyme-catalyzed hydrolysis of cellulose in ionic liquids: a green approach toward the production of biofuels. Bose, Sayantan; Armstrong, Daniel W.; Petrich, Jacob W., Journal of Physical Chemistry B (2010), 114(24), 8221-8227.

ESI-MS investigation of solvent effects on the chiral recognition capacity of tartar emetic towards neutral side-chain amino acids. Wijeratne, Aruna B.; Yang, Samuel H.; Gracia, Jose; Armstrong, Daniel W.; Schug, Kevin A., Chirality (2011), 23(1), 44-53.

Evaluation and comparison of a 3,5-dimethylphenyl isocyanate teicoplanin and phenyl isocyanate teicoplanin chiral stationary phases. Shen, Baochun; Zhang, Datong; Yuan, Jianyong; Xu, Beijia; Xu, Xiuzhu, Chinese Journal of Chemistry (2009), 27(4), 628-632.

Evaluation and comparison of m-tolyl isocyanate teicoplanin and teicoplanin chiral stationary phase. Shen, Baochun; Yuan, Jianyong; Xu, Beijia; Xu, Xiuzhu, Huaxue Xuebao (2009), 67(17), 2005-2012.

Evaluation of a Vancomycin-Based LC Column in Enantiomeric Separation of Atenolol: Method Development, Repeatability Study and Enantiomeric Impurity Determination. El Deeb, Sami, Chromatographia (2010), 71(9/10), 783-787.

Evaluation of aromatic-derivatized cyclofructans 6 and 7 as HPLC chiral selectors. Sun, Ping; Wang, Chunlei; Padivitage, Nilusha Lasanthi Thilakarathna; Nanayakkara, Yasith S.; Perera, Sirantha; Qiu, Haixiao; Zhang, Ying; Armstrong, Daniel W., Analyst (Cambridge, United Kingdom) (2011), 136(4), 787-800.

Evaluation of dalbavancin as chiral selector for HPLC and comparison with teicoplanin-based chiral stationary phases. Zhang, Xiaotong; Bao, Ye; Huang, Ke; Barnett-Rundlett, Kimber L.; Armstrong, Daniel W., Chirality (2010), 22(5), 495-513.

Evaluation of Generic Gradients, Sample Pooling and MS Detection as Chiral Resolution Screening Strategies on Diverse Chiral Stationary Phases. Mone, Mahesh Kumar; Chandrasekhar, K. B., Chromatographia (2011), 73(9-10), 985-992.

Evaluation of tetracationic salts as gas-phase ion-pairing agents for the detection of trivalent anions in positive mode electrospray ionization mass spectrometry. Zhang, Xiaotong; Wanigasekara, Eranda; Breitbach, Zachary S.; Dodbiba, Edra; Armstrong, Daniel W., Rapid Communications in Mass Spectrometry (2010), 24(8), 1113-1123.

Fast detection of Candida albicans and/or bacteria in blood plasma by "sample-self-focusing" using capillary electrophoresis-laser-induced fluorescence. Tong, Man-Yung; Jiang, Chunxia; Armstrong, Daniel W., Journal of Pharmaceutical and Biomedical Analysis (2010), 53(1), 75-80.

First synthesis of P-chirogenic prophosphatranes. Zhou, Yibo; Armstrong, Daniel W.; Zhang, Ying; Verkade, John G., Tetrahedron Letters (2011), 52(14), 1545-1548.

From microbial products to novel drugs that target a multitude of disease indications. Marinelli, Flavia, Methods in Enzymology (2009), 458(Complex Enzymes in Microbial Natural Product Biosynthesis, Part A), 29-58.

Gas chromatography-mass spectrometry resolution of sugar acid enantiomers on a permethylated β-cyclodextrin stationary phase. Cooper, George; Sant, Minakshi; Asiyo, Cynthia, Journal of Chromatography, A (2009), 1216(40), 6838-6843.

GC-MS analysis of crocetane, phytane and some of their stereoisomers using cyclodextrin-based stationary phases. Huang, Ke; Armstrong, Daniel W., Organic Geochemistry (2009), 40(2), 283-286.

Generation of Enantiomeric Amino Acids during Acid Hydrolysis of Peptides Detected by the Liquid Chromatography/Tandem Mass Spectroscopy. Miyamoto, Tetsuya; Sekine, Masae; Ogawa, Tetsuhiro; Hidaka, Makoto; Homma, Hiroshi; Masaki, Haruhiko, Chemistry & Biodiversity (2010), 7(6), 1644-1650.

Genomic sequencing and analyte detection using modified protein pores and ionic liquids via transient ionic current blockades. Guan, Xiyun; Jayawardhana, Dilani A.; Armstrong, Daniel W.; De Zoysa, Ranulu Samanthi; Wang, Deqiang; Zhao, Qitao, PCT Int. Appl. (2010), WO 2010062903 A2 20100603.

High quality bergamot oil from Greece: chemical analysis using chiral gas chromatography and larvicidal activity against the West Nile virus vector. Eleni, Melliou; Antonios, Michaelakis; George, Koliopoulos; Alexios-Leandros, Skaltsounis; Prokopios, Magiatis, Molecules (2009), 14(2), 839-849.

High-performance liquid chromatographic chiral separation of β2-homoamino acids. Pataj, Zoltan; Berkecz, Robert; Ilisz, Istvan; Misicka, Aleksandra; Tymecka, Dagmara; Fueloep, Ferenc; Armstrong, Daniel W.; Peter, Antal, Chirality (2009), 21(9), 787-798.

High-performance liquid chromatographic enantioseparation of 2-aminomono- and dihydroxycyclopentanecarboxylic and 2-aminodihydroxycyclohexanecarboxylic acids on macrocyclic glycopeptide-based phases. Berkecz, Robert; Ilisz, Istvan; Benedek, Gabriella; Fulop, Ferenc; Armstrong, Daniel W.; Peter, Antal, Journal of Chromatography, A (2009), 1216(6), 927-932.

High-performance liquid chromatographic enantioseparation of Betti base analogs on a newly developed isopropyl carbamate-cyclofructan6-based chiral stationary phase. Aranyi, Anita; Ilisz, Istvan; Pataj, Zoltan; Szatmari, Istvan; Fulop, Ferenc; Armstrong, Daniel W.; Peter, Antal, Chirality, No pp. yet given. Language: English, Database: CAPLUS, DOI: 10.1002/chir.20968.

High-performance liquid chromatographic enantioseparation of methanobenzazocines. Barker, William M.; Worm, Karin; Dolle, Roland E., Journal of Chromatography, A (2009), 1216(45), 7708-7714.

High-performance liquid chromatographic enantioseparation of monoterpene-based 2-amino carboxylic acids on macrocyclic glycopeptide-based phases. Sipos, Laszlo; Ilisz, Istvan; Pataj, Zoltan; Szakonyi, Zsolt; Fueloep, Ferenc; Armstrong, Daniel W.; Peter, Antal, Journal of Chromatography, A (2010), 1217(44), 6956-6963.

Improvement of chiral discrimination of acidic enantiomers on teicoplanin stationary phase by the use of chaotropic effect. Flieger, J., Journal of Liquid Chromatography & Related Technologies (2009), 32(7), 948-963.

Increasing selectivity in comprehensive three-dimensional gas chromatography via an ionic liquid stationary phase column in one dimension. Siegler, W. Christopher; Crank, Jeffery A.; Armstrong, Daniel W.; Synovec, Robert E., Journal of Chromatography, A (2010), 1217(18), 3144-3149.

Influence of Chiral Ionic Liquids on Stereoselective Fluorescence Quenching by Photoinduced Electron Transfer in a Naproxen Dyad. Bose, Sayantan; Wijeratne, Aruna B.; Thite, Aniket; Kraus, George A.; Armstrong, Daniel W.; Petrich, Jacob W., Journal of Physical Chemistry B (2009), 113(31), 10825-10829.

Ionic cyclodextrins in ionic liquid matrices as chiral stationary phases for gas chromatography. Huang, Ke; Zhang, Xiaotong; Armstrong, Daniel W., Journal of Chromatography, A (2010), 1217(32), 5261-5273.

Ionic Liquid Based Headspace Solid-Phase Microextraction-Gas Chromatography for the Determination of Volatile Polar Organic Compounds. Carda-Broch, Samuel; Ruiz-Angel, Maria Jose; Armstrong, Daniel W.; Berthod, Alain, Separation Science and Technology (2010), 45(16), 2322-2328.

Ionic liquids in analytical chemistry. Soukup-Hein, Renee J.; Warnke, Molly M.; Armstrong, Daniel W., Annual Review of Analytical Chemistry (2009), 2, 145-168.

Ionic liquids in analytical chemistry. Sun, Ping; Armstrong, Daniel W., Analytica Chimica Acta (2010), 661(1), 1-16.

Ionic liquids in separations and mass spectrometry, a new frontier. Armstrong, Daniel W., Abstracts of Papers, 239th ACS National Meeting, San Francisco, CA, United States, March 21-25, 2010 (2010), IEC-42.

LC Separation of γ-Amino Acid Enantiomers. Pataj, Zoltan; Ilisz, Istvan; Aranyi, Anita; Forro, Eniko; Fueloep, Ferenc; Armstrong, Daniel W.; Peter, Antal, Chromatographia (2010), 71(Suppl.), S13-S19.

Linear Tricationic Room-Temperature Ionic Liquids: Synthesis, Physiochemical Properties, and Electrowetting Properties. Wanigasekara, Eranda; Zhang, Xiaotong; Nanayakkara, Yasith; Payagala, Tharanga; Moon, Hyejin; Armstrong, Daniel W., ACS Applied Materials & Interfaces (2009), 1(10), 2126-2133.

Liquid-liquid extraction based on digital microfluidics. Moon, Hyejin; Kunchala, Praveen; Nanayakkara, Yasith; Armstrong, Daniel W., International Conference on Nanochannels, Microchannels and Minichannels, Proceedings, 7th, Pohang, Republic of Korea, June 22-24, 2009 (2009), (Pt. A), 137-141

Macrocyclic glycopeptide-based chiral stationary phases in high performance liquid chromatographic analysis of amino acid enantiomers and related analogs. Ilisz, I.; Pataj, Z.; Peter, A., Edited by Fitzpatrick, Daniel W.; Ulrich, Henry J. Macrocyclic Chemistry (2010), 129-157.

Measurement of chiral amino acid discrimination by cyclic oligosaccharides: a direct FAB mass spectrometric approach. Sawada, Masami; Takai, Yoshio; Shizuma, Motohiro; Takai, Yoshio; Takeda, Tokuji; Adachi, Hiroshi; Uchiyama, Takao, Chemical Communications (Cambridge) (1998), (14), 1453-1454.

Measurement of Nitrophenols in Rain and Air by Two-Dimensional Liquid Chromatography-Chemically Active Liquid Core Waveguide Spectrometry. Ganranoo, Lucksagoon; Mishra, Santosh K.; Azad, Abul K.; Shigihara, Ado; Dasgupta, Purnendu K.; Breitbach, Zachary S.; Armstrong, Daniel W.; Grudpan, Kate; Rappenglueck, Bernhard, Analytical Chemistry (Washington, DC, United States) (2010), 82(13), 5838-5843.

Mechanisms of ESI-MS Selectivity and Sensitivity Enhancements When Detecting Anions in the Positive Mode Using Cationic Pairing Agents. Breitbach, Zachary S.; Wanigasekara, Eranda; Dodbiba, Edra; Schug, Kevin A.; Armstrong, Daniel W., Analytical Chemistry (Washington, DC, United States) (2010), 82(21), 9066-9073.

Method Development Strategy and Applications Update for CHIROBIOTIC Chiral Stationary Phases. Beesley, Thomas E.; Lee, Jauh-Tzuoh, Journal of Liquid Chromatography & Related Technologies (2009), 32(11 & 12), 1733-1767.

Nanopore Stochastic Detection of a Liquid Explosive Component and Sensitizers Using Boromycin and an Ionic Liquid Supporting Electrolyte. Jayawardhana, Dilani A.; Crank, Jeffrey A.; Zhao, Qitao; Armstrong, Daniel W.; Guan, Xiyun, Analytical Chemistry (Washington, DC, United States) (2009), 81(1), 460-464.

New chiral macrocyles for the separation and stochastic sensing of enantiomers. Armstrong, Daniel W., Abstracts of Papers, 239th ACS National Meeting, San Francisco, CA, United States, March 21-25, 2010 (2010), ANYL-38.

New gas chromatographic method for the enantioseparation of β-amino acids by a rapid double derivatization technique. Forro, Eniko, Journal of Chromatography, A (2009), 1216(6), 1025-1029.

New high-performance liquid chromatography method for the determination of (R)-warfarin and (S)-warfarin using chiral separation on a glycopeptide-based stationary phase. Malakova, Jana; Pavek, Petr; Svecova, Lucie; Jokesova, Iveta; Zivny, Pavel; Palicka, Vladimir, Journal of Chromatography, B: Analytical Technologies in the Biomedical and Life Sciences (2009), 877(27), 3226-3230.

New structural insight for antimony(III)-tartrate. Wijeratne, Aruna B.; Gracia, Jose; Yang, Samuel H.; Kroll, Peter; Armstrong, Daniel W.; Schug, Kevin A., Inorganic Chemistry Communications (2010), 13(12), 1504-1508.

On retentivity tuning by flow in the second column of different comprehensive two dimensional gas chromatographic configurations. Krupcik, Jan; Majek, Pavel; Gorovenko, Roman; Sandra, Pat; Armstrong, Daniel W., Journal of Chromatography, A (2011), 1218(21), 3186-3189.

On-chip drop-to-drop liquid microextraction coupled with real-time concentration monitoring technique. Wijethunga, Pavithra A. L.; Nanayakkara, Yasith S.; Kunchala, Praveen; Armstrong, Daniel W.; Moon, Hyejin, Analytical Chemistry (Washington, DC, United States) (2011), 83(5), 1658-1664.

Positive mode electrospray ionization mass spectrometry of bisphosphonates using dicationic and tricationic ion-pairing agents. Warnke, Molly M.; Breitbach, Zachary S.; Dodbiba, Edra; Crank, Jeffrey A.; Payagala, Tharanga; Sharma, Pritesh; Wanigasekara, Eranda; Zhang, Xiaotong; Armstrong, Daniel W., Analytica Chimica Acta (2009), 633(2), 232-237.

Rapid identification of Candida albicans in blood by combined capillary electrophoresis and fluorescence in situ hybridization. Lantz, Andrew W.; Bisha, Bledar; Tong, Man-Yung; Nelson, Ryan E.; Brehm-Stecher, Byron F.; Armstrong, Daniel W., Electrophoresis (2010), 31(16), 2849-2853.

Retention mechanism of high-performance liquid chromatographic enantioseparation on macrocyclic glycopeptide-based chiral stationary phases. Ilisz, Istvan; Berkecz, Robert; Peter, Antal, Journal of Chromatography, A (2009), 1216(10), 1845-1860.

Reversed phase chiral method development screening for compounds of pharmaceutical interest. Holzheuer, William B.; Wong, Megan M.; Webster, Gregory K., Current Pharmaceutical Analysis (2009), 5(4), 346-357.

RP-HPLC determination of lamivudine and its related substances. Li, Meng; Liu, Youping; Lu, Jing; Di, Xin, Yaowu Fenxi Zazhi (2009), 29(7), 1216-1219.

Separation and determination of clenbuterol by HPLC using a vancomycin chiral stationary phase. Mostafa, Gamal A. E.; Hefnawy, Mohammed M.; El-Majed, Abdulrahman, Journal of AOAC International (2009), 92(3), 824-829.

Separation of inorganic and small organic anions by CE using phosphonium-based mono- and dicationic reagents. Krizek, Tomas; Breitbach, Zachary S.; Armstrong, Daniel W.; Tesarova, Eva; Coufal, Pavel, Electrophoresis (2009), 30(22), 3955-3963.

Separation of stereoisomers of sertraline and its related enantiomeric impurities on a dimethylated β-cyclodextrin stationary phase by HPLC. Rao, R. Nageswara; Talluri, M. V. N. Kumar; Maurya, Pawan K., Journal of Pharmaceutical and Biomedical Analysis (2009), 50(3), 281-286.

Separation of tryptophan enantiomers by using Chirobiotic T HPLC column. Song, Sung-Moon; Rang, Moon Jung; Kim, In Ho, Hwahak Konghak (2010), 48(4), 515-518.

Separations of Cycloinulooligosaccharides via Hydrophilic Interaction Chromatography (HILIC) and Ligand-Exchange Chromatography. Wang, Chunlei; Breitbach, Zachary S.; Armstrong, Daniel W., Separation Science and Technology (2010), 45(4), 447-452.

Simultaneous analysis of bambuterol and its active metabolite terbutaline enantiomers in rat plasma by chiral liquid chromatography-tandem mass spectrometry. Luo, Wenxia; Zhu, Lin; Deng, Jifeng; Liu, Aiming; Guo, Bin; Tan, Wen; Dai, Renke, Journal of Pharmaceutical and Biomedical Analysis (2010), 52(2), 227-231.

Simultaneous determination of 6R-leucovorin, 6S-leucovorin and 5-methyltetrahydrofolate in human plasma using solid phase extraction and chiral liquid chromatography-tandem mass spectrometry. Liu, Ke; Dai, Xiaojian; Zhong, Dafang; Deng, Pan; Ma, Jinfei; Chen, Xiaoyan, Journal of Chromatography, B: Analytical Technologies in the Biomedical and Life Sciences (2009), 877(10), 902-910.

Simultaneous determination of aspartame, its epimer and their degradation products in foods by HPLC and LC/MS. Kiguchi, Chiaki; Hamakawa, Erika; Tomioka, Hanayo; Nii, Tomoe; Maeda, Masako; Horie, Masakazu; Kitada, Yoshimi, Nippon Shokuhin Kagaku Gakkaishi (2010), 17(2), 130-135.

Simultaneous measurement of S-warfarin, R-warfarin, S-7-hydroxywarfarin and R-7-hydroxywarfarin in human plasma by liquid chromatography-tandem mass spectrometry. Zuo, Zhong; Wo, Siu Kwan; Lo, Cindy M. Y.; Zhou, Limin; Cheng, Gregory; You, Joyce H. S., Journal of Pharmaceutical and Biomedical Analysis (2010), 52(2), 305-310.

Slowing DNA Translocation through Nanopores Using a Solution Containing Organic Salts. de Zoysa, Ranulu Samanthi S.; Jayawardhana, Dilani A.; Zhao, Qitao; Wang, Deqiang; Armstrong, Daniel W.; Guan, Xiyun, Journal of Physical Chemistry B (2009), 113(40), 13332-13336.

Solution phase vs. gas phase chiral recognition by ESI-MS: a case study of two chiral selector classes. Schug, Kevin A.; Wijeratne, Aruna B.; Bazzi, Bilal H.; Armstrong, Daniel W., Edited by Zehnacker, Anne. Chiral Recognition in the Gas Phase (2010), 181-204.

Solvent Molecules Undergo Homolytic Cleavage and Radical Recombination Processes during Negative-Mode Electrospray Ionization: Adduct Formation with Antimony(III)-Tartrate Dianion. Wijeratne, Aruna B.; Yang, Samuel H.; Armstrong, Daniel W.; Schug, Kevin A., Analytical Chemistry (Washington, DC, United States) (2010), 82(12), 5141-5146.

Stereoselective analysis of labetalol in human plasma by LC-MS/MS: Application to pharmacokinetics. Carvalho, Teresa Maria De Jesus Ponte; Cavalli, Ricardo De Carvalho; Marques, Maria Paula; Pereira Da Cunha, Sergio; Baraldi, Claudia De Oliveira; Lanchote, Vera Lucia, Chirality (2009), 21(8), 738-744.

Stereoselective determination of venlafaxine and its three demethylated metabolites in human plasma and whole blood by liquid chromatography with electrospray tandem mass spectrometric detection and solid phase extraction. Kingbaeck, Maria; Josefsson, Martin; Karlsson, Louise; Ahlner, Johan; Bengtsson, Finn; Kugelberg, Fredrik C.; Carlsson, Bjoern, Journal of Pharmaceutical and Biomedical Analysis (2010), 53(3), 583-590.

Stereoselective HPLC analysis of tertatolol in rat plasma using macrocyclic antibiotic chiral stationary phase. Hefnawy, Mohamed M.; Asiri, Yousif A.; Al-Zoman, Nourah Z.; Mostafa, Gamal. A.; Aboul-Enein, Hassan Y., Chirality (2011), 23(4), 333-338.

Stereoselective HPLC assay of acebutolol enantiomers with fluorescence detection and its application to a pharmacokinetic study. Al-Omar, Mohamed A., World Applied Sciences Journal (2010), 8(11), 1309-1316.

Sterility testing by CE: A comparison of online preconcentration approaches in capillaries with greater internal diameters. Petr, Jan; Jiang, Chunxia; Sevcik, Juraj; Tesarova, Eva; Armstrong, Daniel W., Electrophoresis (2009), 30(22), 3870-3876.

Study of a new chiral selector: Sodium arsenyl-(L)-(+) tartrate for capillary electrophoresis. Tong, Man-Yung; Payagala, Tharanga; Perera, Sirantha; MacDonnell, Frederick M.; Armstrong, Daniel W., Journal of Chromatography, A (2010), 1217(7), 1139-1148.

Study of complexation between cyclofructans and alkali metal cations by electrospray ionization mass spectrometry and density functional theory calculations. Wang, Chunlei; Yang, Samuel H.; Wang, Jianguang; Kroll, Peter; Schug, Kevin A.; Armstrong, Daniel W., International Journal of Mass Spectrometry (2010), 291(3), 118-124.

Synthesis and chromatographic evaluation of new polymeric chiral stationary phases based on three (1S,2S)-(-)-1,2-diphenylethylenediamine derivatives in HPLC and SFC. Payagala, Tharanga; Wanigasekara, Eranda; Armstrong, Daniel W., Analytical and Bioanalytical Chemistry (2011), 399(7), 2445-2461.

Synthesis and examination of sulfated cyclofructans as a novel class of chiral selectors for CE. Jiang, Chunxia; Tong, Man-Yung; Breitbach, Zachary S.; Armstrong, Daniel W., Electrophoresis (2009), 30(22), 3897-3909.

Tetraionic liquid salts and methods of use thereof. Armstrong, Daniel W.; Wanigasekara, Eranda, PCT Int. Appl. (2011), WO 2011068944 A1 20110609.

The advent and potential impact of ionic liquid stationary phases in GC and GCGC. Armstrong, Daniel W.; Payagala, Tharanga; Sidisky, Leonard M., LC-GC Europe (2009), 22(9), 459-460, 462, 464, 466.

The advent and potential impact of ionic liquid stationary phases in GC and GCxGC. Armstrong, Daniel W.; Payagala, Tharanga; Sidisky, Leonard M., LCGC North America (2009), 27(8), 596, 598, 600-602, 604-605.

The effect of AC frequency on the electrowetting behavior of ionic liquids. Nanayakkara, Yasith S.; Perera, Sirantha; Bindiganavale, Shreyas; Wanigasekara, Eranda; Moon, Hyejin; Armstrong, Daniel W., Analytical Chemistry (Washington, DC, United States) (2010), 82(8), 3146-3154.

The enantiomeric separation of 4,5-disubstituted imidazoles by HPLC and CE using cyclodextrin-based chiral selectors. Breitbach, Zachary S.; Feng, Qing; Koswatta, Panduka B.; Dodbiba, Edra; Lovely, Carl J.; Armstrong, Daniel W., Supramolecular Chemistry (2010), 22(11 & 12), 758-767.

The evaluation and comparison of trigonal and linear tricationic ion-pairing reagents for the detection of anions in positive mode ESI-MS. Warnke, Molly M.; Breitbach, Zachary S.; Dodbiba, Edra; Wanigasekara, Eranda; Zhang, Xiaotong; Sharma, Pritesh; Armstrong, Daniel W., Journal of the American Society for Mass Spectrometry (2009), 20(3), 529-538.

The role of π-acidic and π-basic chiral stationary phases in the high-performance liquid chromatographic enantioseparation of unusual β-amino acids. Ilisz, Istvan; Berkecz, Robert; Forro, Eniko; Fulop, Ferenc; Armstrong, Daniel W.; Peter, Antal, Chirality (2009), 21(3), 339-348.

The stereodynamics of 1,2-dipropyldiaziridines. Trapp, Oliver; Sahraoui, Laila; Hofstadt, Werner; Koenen, Werner, Chirality (2010), 22(2), 284-291.

The use of cyclofructans as novel chiral selectors for gas chromatography. Zhang, Ying; Breitbach, Zachary S.; Wang, Chunlei; Armstrong, Daniel W., Analyst (Cambridge, United Kingdom) (2010), 135(5), 1076-1083.

Thermodynamic approach to enantioseparation of aryl-methyl sulfoxides on teicoplanin aglycone stationary phase. Mericko, D.; Lehotay, J.; Skacani, I.; Armstrong, D. W., Journal of Liquid Chromatography & Related Technologies (2009), 32(3), 331-347.

Towards a Second Generation of Ionic Liquid Matrices (ILMs) for MALDI-MS of Peptides, Proteins, and Carbohydrates. Crank, Jeffrey A.; Armstrong, Daniel W., Journal of the American Society for Mass Spectrometry (2009), 20(10), 1790-1800.

Translocation of single-stranded DNA molecules through alpha - hemolysin nanopore in a butylmethylimidazolium chloride ionic liquid solution. De Zoysa, Ranulu Samanthi S.; Jayawardhana, Dilani A.; Zhao, Qitao; Armstrong, Daniel W.; Guan, Xiyun, Abstracts of Papers, 239th ACS National Meeting, San Francisco, CA, United States, March 21-25, 2010 (2010), BIOT-489.

Trigonal tricationic ionic liquids: A generation of gas chromatographic stationary phases. Payagala, Tharanga; Zhang, Ying; Wanigasekara, Eranda; Huang, Ke; Breitbach, Zachary S.; Sharma, Pritesh S.; Sidisky, Leonard M.; Armstrong, Daniel W., Analytical Chemistry (Washington, DC, United States) (2009), 81(1), 160-173.

Two-step liquid-phase microextraction and high-performance liquid chromatography for the simultaneous analysis of the enantiomers of mefloquine and its main metabolite carboxymefloquine in plasma. Magalhaes, Igor Rafael dos Santos; Sueli Bonato, Pierina, Analytical and Bioanalytical Chemistry (2009), 393(6-7), 1805-1813.

Use of a polar ionic liquid as second column for the comprehensive two-dimensional GC separation of PCBs. Zapadlo, Michal; Krupcik, Jan; Majek, Pavel; Armstrong, Daniel W.; Sandra, Pat, Journal of Chromatography, A (2010), 1217(37), 5859-5867.

Use of CE for the determination of binding constants. Jiang, Chunxia; Armstrong, Daniel W., Electrophoresis (2010), 31(1), 17-27.

Use of cyclofructan as a potential complexing agent in capillary electrophoresis. Reijenga, Jetse C.; Verheggen, Theo P. E. M.; Chiari, Marcella, Journal of Chromatography, A (1999), 838(1 + 2), 111-119.

Use of derivatized cyclodextrins as chiral selectors for the separation of enantiomers by gas chromatography. Schurig, V., Annales Pharmaceutiques Francaises (2010), 68(2), 82-98.

Use of ion pairing reagents for sensitive detection and separation of phospholipids in the positive ion mode LC-ESI-MS. Dodbiba, Edra; Xu, Chengdong; Payagala, Tharanga; Wanigasekara, Eranda; Moon, Myeong Hee; Armstrong, Daniel W., Analyst (Cambridge, United Kingdom) (2011), 136(8), 1586-1593.

Use of Marfey’s Reagent and Analogs for Chiral Amino Acid analysis: Assessment and Applications to Natural Products and Biological Systems. Bhushan, R.; Brückner, H., Journal of Chromatography B (2010), doi:10.1016/j.jchromb.2011.05.058.