GC法测定青岛某水体中雌激素含量  

Determination of Estrogens in Environment Water from Qingdao City by GC-FID or GC-MS

作　　者：周昕[1] 王江涛[1] 赵志超[2] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266003 [2]青岛科技大学化工学院,山东青岛266042

出　　处：《分析测试技术与仪器》2006年第2期104-108,共5页Analysis and Testing Technology and Instruments

摘　　要：介绍了测定环境水中几种雌激素，如：雌酮（E1）、雌二醇（E2）、雌三醇（E3）和雌炔醇（EE2）的测定方法．用C-18小柱对水体中的雌激素进行富集．研究了用TFA、MSTFA对雌激素的衍生化条件．GC-FID及GC-MS法测定衍生化雌激素的工作曲线，相关系数在0．98～0．99之间．测得500mL实际水样中的加标回收率为86％～120％．5000mL环境水样的方法检测限为1～3ng／L用GC-MS法测定了海水和河水中的雌激素含量．A procedure for the determination of natural and synthetic estrogens （estril, estradiol, etynyl estradiol, and estrone） in environment water is described. Samples, up to 500 mL, were concentrated using solid-phase extraction little column. Analytes were derivatized with trifluoroacetic anhydride or N- methyl-N-（trimethylsilyl） trifloroacetamide and determinated by C-C-FID or GC-MS. Derivatization conditions on the performance of the estrogens and way of injecting was studied. The recovery of estrogens spiked into clean groundwater using the little columns procedure was 86%-120% at the 0. 5-2 μg/L level. The correlation coefficient for each compound ranged from 0. 98%-0. 99%. Detection limits in the 1 -3 ng/L range have been achieved for most compounds, based on a 5 litre sample. Some of the estrogens were detected in environment samples.

关 键 词：雌激素 固相萃取 GC-FID GC-MS 海水 河水 

分 类 号：O657.32[理学—分析化学]