Enhancement of chemical derivatization of steroids by gas chromatography/mass spectrometry (GC/MS)

被引:48
作者
Bowden, John A. [1 ]
Colosi, Dominic M. [1 ]
Mora-Montero, Diana C. [1 ]
Garrett, Timothy J. [2 ]
Yost, Richard A. [1 ]
机构
[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA
[2] Univ Florida, Dept Med, Biomed Mass Spectrometry Lab, Gainesville, FL 32610 USA
来源
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES | 2009年 / 877卷 / 27期
关键词
Chemical derivatization; Derivatization enhancement; Gas chromatography/mass spectrometry; Microwave-accelerated derivatization; Silylation; Steroid profiling; Steroids; SOLID-PHASE EXTRACTION; ENDOCRINE DISRUPTING COMPOUNDS; MASS-SPECTROMETRY; TRIMETHYLSILYL DERIVATIZATION; WATER; SILYLATION; ESTROGENS; HORMONES; ESTRONE; 17-ALPHA-ETHINYLESTRADIOL;
D O I
10.1016/j.jchromb.2009.08.005
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Steroid derivatization was investigated by varying the experimental parameters (reagent, reaction time, and reaction temperature) to determine the optimal conditions for individual steroids, and for larger subsets. Three methods of derivatization enhancement were also investigated: the use of sonication, the use of a microwave heating, and the addition of solvents to the reaction mixture. On a comprehensive level, derivatization using N-methyl-N-trintethylsilyl-trifluoroacetamide (MSTFA) was most efficient, while the application of solvent addition and microwave heating, in several cases, provided a clear enhancement. In addition, generalized rules for steroid derivatization are described. (C) 2009 Elsevier B.V. All rights reserved.
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页码:3237 / 3242
页数:6
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