A GC-MS METHOD FOR THE ANALYSIS OF FECAL AND PLANT STEROLS IN SEDIMENT SAMPLES

被引：24

作者：

BENFENATI, E

COOLS, E

FATTORE, E

FANELLI, R

机构：

[1] Istituto di Ricerche Farmacologiche Mario Negri, 20157 Milano, Via Eritrea

来源：

CHEMOSPHERE | 1994年 / 29卷 / 07期

关键词：

D O I：

10.1016/0045-6535(94)90273-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We describe here a new procedure for analysing eleven sterols in environmental samples using gas chromatography-mass spectrometry (CC-MS). This consists of complete silylation of the sterols using N-methyl-N-trimethylsilyltrifluoroactemide (MSTFA) with iodo-trimethylsilane (TMSI) and a base as catalyst. To assess the applicability of the method to environmental samples and to estimate the extraction efficiency we added increasing amounts of sterols to the same sediment sample and quantified them by the internal standard method. We also analyzed, in three replications, a sediment sample from the Adriatic Sea in order to establish the precision of the method.

引用

页码：1393 / 1405

页数：13

共 39 条

[1]

ARTAUD J, 1980, ANALUSIS, V8, P277

[2]

AUDIER H, 1963, B SOC CHIM FR, P1971

[3] CHARACTERIZATION OF ORGANIC AND INORGANIC POLLUTANTS IN THE ADIGE RIVER (ITALY) [J].