7β,12β-dihydroxy-5β-cholan-24-oic acid as an internal standard for quantitative determination of bile acids by gas chromatography
作者:Kazuhito Arimoto、Koichi Adachi、Nobuo Yamaga
DOI:10.1016/0039-128x(82)90134-9
日期:1982.6
standard compound for quantitative determination of bile acids by gas chromatography, 7α,12α-,7α, 12β-, 7β,12α- and 7β,12β-dihydroxy-5β-cholan-24-oic acids were chemically synthesized with cholic acid (1) as the first starting material. The gas chromatographie retention time of 7β,12β-dihydroxy-5β-cholan-24-oic acid (ββ-isomer) was more different from that of natural bile acids than the other isomers
摘要 为寻找气相色谱法定量测定胆汁酸的人工内标化合物,7α,12α-,7α, 12β-, 7β,12α- 和 7β,12β-dihydroxy-5β-cholan-24-oic Acids以胆酸(1)为第一原料化学合成。7β,12β-dihydroxy-5β-cholan-24-oic acid(ββ-异构体)的气相色谱保留时间与天然胆汁酸的差异比其他异构体更大。此外,ββ-异构体与尿液中的胆汁酸在同一馏分中提取,没有任何尿液物质具有与ββ-异构体相同的保留时间。在分析过程中,ββ-异构体没有产生伪影。得出结论,ββ-异构体是一种内标化合物,在气相色谱法定量测定尿液中的胆汁酸方面具有一定优势,