Merck
Search Within
Applied Filters:
Keyword:'279544'
Showing 1-30 of 182 results for "

279544

" within Papers
Sort by Relevance
Nađa Kostić et al.
Journal of pharmaceutical and biomedical analysis, 109, 79-84 (2015-03-15)
In this paper, novel LC-MS/MS methods for the determination of antiepileptic drug pregabalin in dried matrix spots (DMS) are presented. This attractive technique of sample collection in micro amount was utilized in the form of dried blood spots (DBS) and
Katerina Naumoska et al.
Journal of chromatography. A, 1381, 229-238 (2015-01-20)
Three TLC methods were used for an initial screening of some common plant triterpenoids and phytosterols in cuticular wax extracts of different vegetables (zucchini, eggplant, tomato, red pepper, mangold, spinach, lettuce, white-colored radicchio di Castelfranco, raddichio Leonardo, white cabbage, red
Corissa L Rodgers et al.
Forensic science international, 240, 144-150 (2014-05-09)
Previous studies performed by our research group have suggested that zeolites are a suitable adsorbent for the recovery of oxygenates from fire debris through heated passive headspace extraction. Zeolite 13X, in particular, has been shown to be effective for recovering
Surja B Ghale et al.
The journal of physical chemistry. A, 122(39), 7797-7807 (2018-09-21)
The competitive threshold collision-induced dissociation technique is used to examine conformational effects on the relative gas-phase acidities of selected alcohols. By use of HF and H2O as reference acids in a local thermochemical network to obtain absolute acidities, the measured
Shu-Ling Lin et al.
Talanta, 147, 199-206 (2015-11-26)
In this study, recently developed 1,6-hexanediol ethoxylate diacrylate (HEDA)-based polymeric monoliths were utilized as sorbents for efficient extraction of phenylurea herbicides (PUHs) from water samples. The HEDA-based monolithic sorbents were prepared in a fused silica capillary (0.7mm i.d., 4.5-cm long)
Michal Fornalczyk et al.
Organic & biomolecular chemistry, 10(16), 3332-3342 (2012-03-17)
Two approaches have been developed for the enantioselective Reformatsky reaction of ethyl iododifluoroacetate with ketones to form a quaternary carbon centre using (1R,2S)-1-phenyl-2-(1-pyrrolidinyl)-1-propanol as the chiral ligand. Good yields and high enantioselectivities (80-91% ee) were achieved with a range of
Ali Akbar Asgharinezhad et al.
Analytica chimica acta, 844, 80-89 (2014-08-31)
In this study, diverse types of Fe3O4 nanocomposites modified by polyaniline, polypyrrole, and aniline-pyrrole copolymer were synthesized through chemical oxidative polymerization process for dispersive-μ-solid phase extraction (D-μ-SPE) in the presence of various dopants. The results showed that the nanocomposite modified
Fathalla F Belal et al.
Journal of chromatographic science, 52(10), 1224-1232 (2014-02-11)
Two simple analytical methods were developed and validated for the analysis of a binary mixture of metoclopramide (MET) and aspirin (ASP). The first method depends on measuring the first derivative amplitudes at 257 nm for MET and at 310 nm
Marwa Ahmed et al.
Chirality, 26(11), 754-763 (2014-03-08)
New affinity monolithic capillary columns of 150 µm internal diameter were prepared in situ fused glass capillary via either immobilization or encapsulation of Candida antarctica lipase B (CALB) on or within polymer monoliths, respectively. The immobilized lipase-based monoliths were prepared
Mohammed I Walash et al.
Luminescence : the journal of biological and chemical luminescence, 29(5), 462-470 (2013-09-03)
A new, specific and sensitive reversed-phase high-performance liquid chromatography method was developed for the simultaneous determination of metolazone (MET) and losartan potassium (LOS). Good chromatographic separation was achieved within 6.0 min on a 150 × 4.6 mm i.d., 5 µm Waters, Ireland
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Sun Jin Kim et al.
Analytical biochemistry, 485, 59-65 (2015-06-21)
This study provides the findings of investigations of potential product-related variants on recombinant human growth hormone (rhGH) in a once-weekly sustained release formulation (SR-rhGH) of sodium hyaluronate microparticles and on the rhGH bulk solution used as the active ingredient for
Behnam Ebrahimpour et al.
Analytica chimica acta, 885, 98-105 (2015-08-02)
The aim of the present work is combination of the advantages of magnetic solid phase extraction (MSPE) and dispersive liquid phase microextraction (DLLME) followed by filtration-based phase separation. A new pretreatment method was developed for trace determination of megestrol acetate
Dieuwke Sevenster et al.
Science (New York, N.Y.), 339(6121), 830-833 (2013-02-16)
Although reconsolidation opens up new avenues to erase excessive fear memory, subtle boundary conditions put constraints on retrieval-induced plasticity. Reconsolidation may only take place when memory reactivation involves an experience that engages new learning (prediction error). Thus far, it has
Paul R S Baker et al.
Journal of lipid research, 55(11), 2432-2442 (2014-09-17)
Phospholipids serve as central structural components in cellular membranes and as potent mediators in numerous signaling pathways. There are six main classes of naturally occurring phospholipids distinguished by their distinct polar head groups that contain many unique molecular species with
Kunal Savaji et al.
Journal of colloid and interface science, 453, 276-280 (2015-05-26)
In this paper we study the phenomenon of lateral movement of particles that are electrostatically adsorbed at a solid-liquid interface. The experimental system involves negatively charged silica particles of two different sizes (65 nm and 90 nm) that are exposed
Synthesis of 3-pentanone from 1-propanol over CeO2-Fe2O3 catalysts
Kamimura Y, et al
Applied Catalysis A: General, 252(2), 399-410 (2003)
Jiandong Hu et al.
PloS one, 10(3), e0122005-e0122005 (2015-03-24)
A surface plasmon resonance (SPR) immunoassay with an immobilization of self-assembled molecular identification membrane for the detection of residual Clenbuterol Hydrochloride (CLB) in pork liver was systematically investigated and experimentally validated for its high performance. SPR immunoassay with a regular
Josquin Foiret et al.
PloS one, 10(8), e0134938-e0134938 (2015-08-06)
Mild hyperthermia has been successfully employed to induce reversible physiological changes that can directly treat cancer and enhance local drug delivery. In this approach, temperature monitoring is essential to avoid undesirable biological effects that result from thermal damage. For thermal
Maryam Shanehsaz et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 149, 481-486 (2015-05-16)
The present work deals with the first attempt to study the removal of synthetic textile dye, reactive blue 19 (RB19), using the magnetic Fe3O4 nanoparticles modified by pyrrole (PPy@Fe3O4 MNPs) as an efficient adsorbent. The nanoadsorbent was synthesized using chemical
H M Liebich et al.
Clinical chemistry, 21(9), 1294-1296 (1975-08-01)
We studied the aliphatic alcohols in 100 urines from 25 patients with diabetes mellitus under treatment with insulin, oral antidiabetic medication, or special diet. The procedure involves adsorption of the low-molecular-weight urinary metabolites on a porous polymer of 2,6-diphenyl-p-phenylene oxide
Andrea Doni et al.
The Journal of experimental medicine, 212(6), 905-925 (2015-05-13)
Pentraxin 3 (PTX3) is a fluid-phase pattern recognition molecule and a key component of the humoral arm of innate immunity. In four different models of tissue damage in mice, PTX3 deficiency was associated with increased fibrin deposition and persistence, and
Selvedin Telalović et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(7), 2077-2088 (2011-01-25)
Bimetallic three-dimensional amorphous mesoporous materials, Al-Zr-TUD-1 materials, were synthesised by using a surfactant-free, one-pot procedure employing triethanolamine (TEA) as a complexing reagent. The amount of aluminium and zirconium was varied in order to study the effect of these metals on
Nicolas Gisch et al.
Scientific reports, 5, 16718-16718 (2015-11-19)
Members of the Mitis group of streptococci possess teichoic acids (TAs) as integral components of their cell wall that are unique among Gram-positive bacteria. Both, lipoteichoic (LTA) and wall teichoic acid, are formed by the same biosynthetic pathway, are of
László Pál et al.
Immunopharmacology and immunotoxicology, 37(2), 193-201 (2015-02-19)
A large volume of alcoholic beverages containing aliphatic alcohols is consumed worldwide. Previous studies have confirmed the presence of ethanol-induced immunosuppression in heavy drinkers, thereby increasing susceptibility to infectious diseases. However, the aliphatic alcohols contained in alcoholic beverages might also
Mohamed S Rizk et al.
Journal of chromatographic science, 53(4), 503-510 (2014-07-12)
A stability-indicating micellar liquid chromatographic (MLC) method was developed and validated for the quantitative determination of timolol maleate (TM) in the presence of its degradation products resulting from accelerated degradation in a run time not more than 8 min. TM
C R Shen et al.
Metabolic engineering, 10(6), 312-320 (2008-09-09)
Production of higher alcohols via the keto-acid intermediates found in microorganism's native amino-acid pathways has recently shown promising results. In this work, an Escherichia coli strain that produces 1-butanol and 1-propanol from glucose was constructed. The strain first converts glucose
Rachel S Leisso et al.
Physiologia plantarum, 153(2), 204-220 (2014-06-20)
'Soggy breakdown' (SB) is an internal flesh disorder of 'Honeycrisp' apple (Malus × domestica Borkh.) fruit that occurs during low temperature storage. The disorder is a chilling injury (CI) in which visible symptoms typically appear after several weeks of storage
Apeng Chen et al.
Analytica chimica acta, 887, 230-236 (2015-09-01)
Toward developing a micro HPLC cartridge, we have recently built a high-pressure electroosmotic pump (EOP). However, we do not recommend people to use this pump to deliver an organic solvent directly, because it often makes the pump rate unstable. We
Honglei Zhang et al.
Bioresource technology, 112, 28-33 (2012-03-20)
Hybrid catalytic membranes consisting of cation ion-exchange resin particles (CERP) and polyethersulfone (PES) were prepared by immersion phase inversion and used as heterogeneous catalysts for the esterification of acidified oil with methanol, ethanol, propanol and butanol. The membranes were characterized
Page 1 of 7
Page 1 of 7