OPTIMIZING METHYLATION CONDITIONS FOR GAS-LIQUID CHROMATOGRAPHY ASSAY OF LACTIC AND SUCCINIC ACID IN BIOLOGICAL SAMPLES

被引:17
作者
BRICKNELL, KS [1 ]
BROOK, I [1 ]
FINEGOLD, SM [1 ]
机构
[1] VET ADM WADSWORTH HOSP CTR,MED SERV,LOS ANGELES,CA 90073
关键词
D O I
10.1007/BF02271594
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Aqueous standard solutions of lactic and succinic acids were methylated for assay by gas-liquid chromatography. The efficiency of methylation using boron trifluoridemethanol reagent was compared to methylation using a sulfuric acid-methanol mixture; the ratio of sulfuric acid and methanol was also varied. Reactions were done at 100°C/5 min and at room temperature/20 hours. We found the sulfuric acid-methanol was most efficient for a rapid assay; however, the ratio of sulfuric acid and methanol used is critical in the assay of lactic acid and would be especially important in the clinical laboratory using gas-liquid chromatography for analysis of cerebrospinal fluid from suspect meningitis patients or other body fluids. © 1979 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH.
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页码:22 / 25
页数:4
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