Wu Wei, Shi Jiang-Hong, Chen Qing-Cai, Zhang Hui, Liu Xiao-Wei
State Key Laboratory of Water Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China.
Huan Jing Ke Xue. 2013 Feb;34(2):724-31.
Estrogens and alkylphenols have received much attention because of its endocrine disrupting effects to aquatic ecosystem in recent years. The fate of these compounds in sediments which is a repository of many organic pollutants has an important significance on the study of behaviors of target compounds in the environment. It is difficult to separate trace estrogens from sediments with complex matrices. Alkali extraction, liquid-liquid extraction and LC-MS/MS were used to analyze estrogens, nonylphenol, 4-tert-octylphenol and bisphenol A in sediments based on their physicochemical properties. The results showed that recoveries of the seven target compounds were 61.3%-93.7%. The established pretreatment method can effectively remove pollutants that cannot dissolve in alkali solution or that cannot dissolve in both acid and alkali solution. It can widely be used to analyze sediments and soil samples because of its low cost and simple operation but with high recoveries and low detection limit.
近年来，雌激素和烷基酚因其对水生生态系统的内分泌干扰作用而备受关注。沉积物是许多有机污染物的储存库，这些化合物在沉积物中的归宿对于研究目标化合物在环境中的行为具有重要意义。从基质复杂的沉积物中分离痕量雌激素很困难。基于其物理化学性质，采用碱萃取、液液萃取和液相色谱 - 串联质谱法分析沉积物中的雌激素、壬基酚、4 - 叔辛基酚和双酚A。结果表明，七种目标化合物的回收率为61.3% - 93.7%。所建立的预处理方法能够有效去除不溶于碱溶液或既不溶于酸也不溶于碱溶液的污染物。该方法成本低、操作简单、回收率高且检测限低，可广泛用于分析沉积物和土壤样品。
