Optimization of a gas chromatography--mass spectrometry method using chemometric techniques for the determination of ezetimibe in human plasma

A new, rapid, and sensitive gas chromatography--mass spectrometry (GC-MS) method was developed for the determination of ezetimibe (EZE) in human plasma. EZE was derivatized prior to GC-MS analysis. Various derivatization techniques such as acetylation, methylation, and silylation were tried. EZE was extracted from plasma with high recovery (94.39%--97.57%) using methyl tertbutyl ether and carbonate buffer (pH 9). Chromatographic conditions were optimized using chemometric methods. In the first step, optimization with factorial design, chromatographic variables (initial and final column temperature, oven ramp rate, and flow rate of gas) were screened to select important variables for the retention of EZE. In the second step, central composite design was applied to decide on the retention time of EZE. The analysis was achieved in a short period of time (

Optimization of a gas chromatography--mass spectrometry method using chemometric techniques for the determination of ezetimibe in human plasma

A new, rapid, and sensitive gas chromatography--mass spectrometry (GC-MS) method was developed for the determination of ezetimibe (EZE) in human plasma. EZE was derivatized prior to GC-MS analysis. Various derivatization techniques such as acetylation, methylation, and silylation were tried. EZE was extracted from plasma with high recovery (94.39%--97.57%) using methyl tertbutyl ether and carbonate buffer (pH 9). Chromatographic conditions were optimized using chemometric methods. In the first step, optimization with factorial design, chromatographic variables (initial and final column temperature, oven ramp rate, and flow rate of gas) were screened to select important variables for the retention of EZE. In the second step, central composite design was applied to decide on the retention time of EZE. The analysis was achieved in a short period of time (

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Turkish Journal of Chemistry-Cover
  • ISSN: 1300-0527
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
Sayıdaki Diğer Makaleler

Ultrasound-assisted emulsification–solidified floating organic drop microextraction combined with flow injection–flame atomic absorption spectrometry for the determination of palladium in water samples

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Determination of zineb in tap water and tomato samples by adsorptive catalytic stripping voltammetry

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Optimization of a gas chromatography--mass spectrometry method using chemometric techniques for the determination of ezetimibe in human plasma

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Palladium-EDTA and palladium-EdteH4 catalyzed Heck coupling reactions in pure water

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Ultrasound-assisted emulsification--solidified floating organic drop microextraction combined with flow injection--flame atomic absorption spectrometry for the determination of palladium in water samples

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Synthesis of 5-membered heterocycles using benzoylacetonitriles as synthon

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Determination and evaluation of gross alpha and beta activity concentrations and metal levels in thermal waters from Ankara, Turkey

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Poly(4-vinylpyridine)-supported dual acidic ionic liquid: an environmentally friendly heterogeneous catalyst for the one-pot synthesis of 4,4’-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)

Kaveh PARVANAK BOROUJENI, Pegah SHOJAEI