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Eliza N Fung et al.
The AAPS journal, 17(5), 1168-1176 (2015-05-16)
Bioanalytical analysis of toxicokinetic and pharmacokinetic samples is an integral part of small molecule drugs development and liquid chromatography-tandem mass spectrometry (LC-MS/MS) has been the technique of choice. One important consideration is the matrix effect, in which ionization of the...
Shinji Kobuchi et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1000, 22-28 (2015-07-26)
Ipragliflozin is a highly potent and selective sodium-dependent glucose co-transporter-2 (SGLT2) inhibitor, a novel class of hypoglycemic agents. The aim of the present study was to establish a new highly sensitive and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for...
Mohammad Ghasemian et al.
Environmental technology, 33(16-18), 1937-1943 (2012-12-18)
A laboratory-scale anaerobic sequencing batch reactor was used to evaluate treatment of a synthetic substrate mixture representing petrochemical wastewater containing methyl tert-butyl ether (MTBE), ethanol and acetic acid. Influent MTBE concentrations were 5, 10 and 50 mg/l (corresponding to MTBE...
Surajit Rakshit et al.
Langmuir : the ACS journal of surfaces and colloids, 29(6), 1808-1817 (2013-01-15)
The effect of hydrophobic interaction on water is still controversial and requires more detailed experimental and theoretical investigation. The interaction between organic-water molecular complexes might be indicative of the perturbation of hydrogen-bond network in the tetrahedral structure of bulk waters...
Marlize Z Viviers et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 70(5-6), 115-128 (2015-07-30)
Amniotic fluid (AF) was investigated as a possible source of the neonatal recognition cue that plays a crucial role in ewe-lamb bonding in sheep. A total of 70 of the 133 volatile organic compounds (VOCs), previously identified in the cranial...
Da-Hye Kim et al.
Environmental pollution (Barking, Essex : 1987), 192, 171-178 (2014-06-24)
Serum and urine samples from 120 children aged 5-13 years from Dae-gu, Korea, were analyzed for 16 perfluorinated compounds (PFCs). The total PFC concentrations in the serum were 4.26-29.70 ng/mL, and perfluorohexanesulfonate (PFHxS), perfluorooctanoic acid (PFOA), perfluorooctanesulfonate (PFOS, which was dominant...
I Werner et al.
Environmental pollution (Barking, Essex : 1987), 111(1), 83-88 (2001-02-24)
Increased input of the fuel oxygenate methyl-tert-butyl ether (MTBE) into aquatic systems has led to concerns about its effect(s) on aquatic life. As part of a study conducted by University of California scientists for the State of California, the Aquatic...
J J Clary
Risk analysis : an official publication of the Society for Risk Analysis, 17(6), 661-672 (1998-02-17)
In male F344 rats exposed in a chronic inhalation study to methyl tertiary butyl ether (MTBE) a treatment related increase in severity of chronic nephropathy and mortality and an increase in hyaline droplets in the kidney were noted. Liver weights...
Nan Yang et al.
Molecules (Basel, Switzerland), 20(3), 4319-4336 (2015-03-11)
A high-throughput, sensitive and specific LC-ESI-MS/MS method was established for the quantitative determination of GP205, a potent inhibitor of hepatitis C virus NS3/4A protease, in rat. The analyte was isolated from 25 μL plasma sample by 96-well LLE. Good linearity...
Juan C Domínguez-Romero et al.
Journal of chromatography. A, 1361, 34-42 (2014-08-21)
Sample preparation is a critical step in large-scale multiclass analysis such as sport drug testing. Due to the wide heterogeneity of the analytes and the complexity of the matrix, the selection of a correct sample preparation method is essential, looking...
Tiffany L L Teo et al.
Talanta, 143, 114-120 (2015-06-17)
The widespread use of organophosphate flame retardants (PFRs) in commercial products have led to their increased presence in the environment. In this study, a rapid and reliable analytical method was developed for the analysis of five PFRs in water using...
Khaled M Mohamed et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 997, 1-6 (2015-06-16)
In some developing countries, p-phenylenediamine (PPD) is used in combination with Henna as hair dye or skin decoration. A sensitive LC-MS/MS method was developed and validated for the simultaneous determination of p-phenylenediamine (PPD) and its metabolites N-acetyl-p-phenylenediamine (MAPPD) and N,N-diacetyl-p-phenylenediamine...
Bing Zhu et al.
Environmental science. Processes & impacts, 17(8), 1377-1385 (2015-07-15)
The co-existence of free and conjugated estrogens and the interference from complex matrices often lead to largely variable detected concentrations and sometimes even negative removal efficiencies of typical endocrine disrupting chemicals (EDCs) in wastewater treatment plants (WWTPs). In this study...
Mayara Malhado et al.
Journal of pharmaceutical and biomedical analysis, 117, 405-412 (2015-10-07)
Praziquantel (PZQ) is the drug recommended by the World Health Organization for treatment of schistosomiasis. However, the treatment of children with PZQ tablets is complicated due to difficulties to adapt the dose and the extremely bitter taste of PZQ. For...
Bernhard Sandig et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(44), 15835-15842 (2015-10-24)
Mesoporous monolithic hybrid cellulose-2.5-acetate (CA)/polymer supports were prepared under solvent-induced phase separation conditions using cellulose-2.5-acetate microbeads 8-14 μm in diameter, 1,1,1-tris(hydroxymethyl)propane and 4,4'-methylenebis(phenylisocyanate) as monomers as well as THF and n-heptane as porogenic solvents. 4-(Dimethylamino)pyridine and dibutyltin dilaurate (DBTDL), respectively, were...
New approach of catalyst-free biodiesel production from canola oil in supercritical tert-butyl methyl ether (MTBE).
Farobie O, et al.
Fuel: The Science and Technology of Fuel and Energy, 135, 172-181 (2014)
Y G Zhao et al.
Marine pollution bulletin, 83(1), 148-154 (2014-04-30)
Surface sediment and biota were collected from 12 sampling sites - seven along the Pearl River Delta and five along the Hong Kong coastline. Perfluorinated compound (PFC) concentrations were detected using a high-performance-liquid-chromatogram-tandem-mass-spectrometry system. Analytical results indicated that the total...
Walid M Ebeid et al.
Journal of chromatographic science, 53(7), 1178-1184 (2015-01-13)
A sensitive UPLC-MS/MS method was developed and validated for simultaneous estimation of aliskiren hemifumarate (ALS), amlodipine besylate (AML) and hydrochlorothiazide (HCZ) in spiked human plasma using valsartan as an internal standard (IS). Liquid-liquid extraction was used for purification and pre-concentration...
Li Zhen Zhang et al.
Food chemistry, 174, 495-501 (2014-12-23)
Commonly consumed foxtail millet varieties Jingu28 and Jingu34 were compared in terms of phytochemical composition, antioxidant property, and antiproliferative activity. The cellular antioxidant activity (CAA) was evaluated based on HepG2 cell cultivation. Antiproliferative properties against HepG2 and MDA cell were...
Cuihua Liu et al.
Journal of the science of food and agriculture, 95(1), 111-119 (2014-04-12)
Terpenoids are major components of carotenoids, limonoids and aromas in citrus fruits, resulting in fruit coloration, bitterness and aroma. In this study the carotenoid, limonoid and volatile profiles of red-flesh Chuhong pummelo (CH) and pale green-flesh Feicui pummelo (FC) were...
Yishuo Wu et al.
International urology and nephrology, 47(6), 965-970 (2015-05-15)
Genistein is one of the main soy isoflavones in our daily diet. There were studies proving that high-dietary intake of genistein may relate to the low morbidity and mortality of prostate cancer (PCa) in the Asian population. Since there were...
Martin Sramek et al.
Journal of food science, 80(8), E1755-E1762 (2015-07-21)
We present a rapid and gentle drying method for the production of high-grade tomato powders from double concentrated tomato paste, comparing results with powders obtained by foam mat air drying and freeze dried powders. The principle of this method consists...
Chang Li et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 75, 8-13 (2014-12-03)
3-monochoropropane-1, 2-diol (3-MCPD) esters from edible oils are considered to be a possible risk factor for adverse effects in human. In the present study, the exposure assessment of 3-MCPD esters to Chinese population was performed. A total of 143 edible...
Geetika Joshi et al.
FEMS microbiology letters, 362(7) (2015-03-01)
Among the few bacteria known to utilize methyl tert-butyl ether (MTBE) as a sole carbon source, Methylibium petroleiphilum PM1 is a well-characterized organism with a sequenced genome; however, knowledge of the genetic regulation of its MTBE degradation pathway is limited....
Sahar Ghasemi et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 971, 112-119 (2014-10-04)
Methyl-tert-butyl ether (MTBE) is widely used as an antiknock additive for increasing octane number of gasoline. Recently, the in vivo studies demonstrated that MTBE has genotoxic potential and able to form adducts with DNA. In the work, the interactions of...
Fernando Fernández-Aranda et al.
PloS one, 9(8), e104534-e104534 (2014-08-08)
Endocannabinoids and temperament traits have been linked to both physical activity and body mass index (BMI) however no study has explored how these factors interact in females. The aims of this cross-sectional study were to 1) examine differences among distinct...
Andy Hutson et al.
Chemosphere, 89(10), 1218-1223 (2012-08-28)
Chemical oxidation regeneration of granular activated carbon (GAC) is a developing technology that can be carried out utilizing thermally-activated persulfate. During chemical regeneration of GAC, aggressive oxidative conditions lead to high acidity (pH<2) and the accumulation of sodium persulfate residuals...
Nils Reiche et al.
Environmental monitoring and assessment, 185(9), 7133-7144 (2013-01-19)
Phytoscreening of phytoremediation-based plantings is discussed as a promising monitoring tool in literature. We developed and applied an analytical procedure for the in vivo sampling of methyl tert-butyl ether (MTBE) in the common reed (Phragmites australis) from a phytoremediation site...
Jing Li et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 970, 77-85 (2014-09-23)
A highly selective and sensitive method for simultaneous quantitation of osthole, bergapten and isopimpinellin in rat plasma and tissues was developed by liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS). After liquid-liquid extraction of samples with methyl tert-butyl ether, the analytes and...
Anna Polishchuk et al.
Bioresource technology, 193, 469-476 (2015-07-15)
The eicosapentaenoic acid (EPA) containing marine microalga Nannochloropsis oculata was grown in an effluent from anaerobic digestion of excess activated sludge from a wastewater treatment plant serving a combination of a pulp and a paper mill and a municipality (digester...
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