Purification of dinosterol for hydrogen isotopic analysis using high-performance liquid chromatography-mass spectrometry.
Purification of dinosterol for hydrogen isotopic analysis using high-performance liquid chromatography-mass spectrometry.
复制标题
使用高效液相色谱-质谱法纯化地甾醇用于氢同位素分析。
DOI:
10.1016/j.chroma.2007.09.018
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
J. Sachs
中科院分区:
文献类型:
--
作者:
R. Smittenberg;J. Sachs
A semi-preparative normal-phase high-performance liquid chromatography–mass spectrometry (HPLC–MS) method is presented for the purification of various alcohol fractions from total lipid extracts derived from sediments, for the purpose of hydrogen isotopic measurement by gas chromatography–isotope ratio mass spectrometry (GC–IRMS). 4-Methylsterols, including the dinoflagellate-specific marker dinosterol (4,23,24-trimethylcholestan-22-en-3β-ol), were successfully separated from notoriously co-eluting plant-derived pentacyclic triterpenoid alcohols and alkyl alcohols. We find that substantial hydrogen isotope fractionation occurs during chromatographic separation, demonstrating the importance of recovering the entire peak when subsequent hydrogen isotope analyses are to be performed. This is the first report of such hydrogen isotopic fractionation for a natural unlabelled compound.
影响因子:
5
作者:
D. Sachse;J. Radke;G. Gleixner
通讯作者:
D. Sachse;J. Radke;G. Gleixner
影响因子:
64.8
作者:
Schefuss, E;Schouten, S;Schneider, RR
通讯作者:
Schneider, RR
DOI:
10.1016/s0021-9673(96)00694-2
发表时间:
1997
期刊:
Journal of chromatography. A
影响因子:
--
作者:
Caimi,RJ;Brenna,JT
通讯作者:
Brenna,JT