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Autor:
Jidong Liu, Paul W. Erhardt, Crystal Bykowski, Howard Ando, Mugunthu R. Dhananjeyan, Jill A. Trendel, Jeffrey G. Sarver
Publikováno v:
Journal of Chromatography A. 1138:101-108
A rapid high-performance liquid chromatography method has been developed for simultaneous determination of capecitabine and its metabolites: 5'-deoxy-5-fluorocytidine (5'-DFCR), 5'-deoxy-5-fluorouridine (5'-DFUR) and 5-fluorouracil (5-FU). 5'-DFCR wa
Publikováno v:
Journal of Chromatography A. 1133:254-258
Since the isolation of artemisinin 32 years ago, it has been analyzed by different chromatographic techniques. This work compared the analysis of artemisinin from crude plant samples by GC with flame ionization detection (GC-FID) and HPLC with evapor
Publikováno v:
Journal of Chromatography A. 1134:194-200
Theophylline imprinted monolithic columns were designed and prepared for rapid separation of a homologous series of xanthine derivatives, caffeine, and theophylline by an in situ thermal-initiated copolymerization technique. Caffeine and theophylline
Autor:
Fabrice Gritti, Georges Guiochon
Publikováno v:
Journal of Chromatography A. 1132:51-66
RPLC columns with different surface coverages (a C(1) endcapped column with a bonding density of 3.92 micromol/m(2) and four C(18)-bonded, endcapped columns, with octadecyl chain densities of 0.42, 1.01, 2.03, and 3.15 micromol/m(2)) were used to inv
Publikováno v:
Journal of Chromatography A. 1129:149-152
A simple and rapid capillary electrophoretic method was developed for the simultaneous determination of micro-molar adenosine, hypoxanthine and inosine in enzyme assays without using radioactive labeled substrates. Prior to electrophoretic separation
Autor:
Sarah Pelletier, Charles A. Lucy
Publikováno v:
Journal of Chromatography A. 1125:189-194
Rapid ion chromatographic separations of small inorganic anions are performed on columns packed with high-pH resistant Zorbax Extend-C18 1.8 microm silica particles. Seven anions (iodate, chloride, nitrite, bromide, nitrate, phosphate, sulphate) are
Publikováno v:
Journal of Chromatography A. 1125:182-188
Without adding any volatile organic solvents, aqueous solutions of room temperature ionic liquids (RTILs) were used as ‘green’ mobile phases to determine octopamine, synephrine and tyramine by liquid chromatography. The problems of the adrenergic
Publikováno v:
Journal of Chromatography A. 1124:106-111
Solid-phase microextraction (SPME) was applied to the on-site analysis of volatile organic compounds (VOCs) in indoor air. The compounds were at trace levels, which complicates analysis and also sample storage. Fibre storage before and after sampling
Publikováno v:
Journal of Chromatography A. 1125:124-128
A capillary electrophoresis method, using field-amplified sample injection (FASI), was developed for separation and determination of some β 2 -agonists, such as cimaterol, clenbuterol and salbutamol. The optimum conditions for this system had been i
Publikováno v:
Journal of Chromatography A. 1120:13-20
The present study examined the metabolism of released dopamine from rat striatum upon chronic rotenone exposure. The sample separation was carried out by two-dimensional, reversed-phase and ion pair reversed-phase chromatography using on-line solid p