Calibration and field performance of triolein embedded acetate membranes for passive sampling persistent organic pollutants in water

被引：18

作者：

Tang, Jianfeng ^{[1
]}

Chen, Shan ^{[1
]}

Xu, Yiping ^{[1
]}

Zhong, Wenjue ^{[1
]}

Ma, Mei ^{[1
]}

Wang, Zijian ^{[1
]}

机构：

[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

来源：

ENVIRONMENTAL POLLUTION | 2012年 / 164卷

基金：

中国国家自然科学基金;

关键词：

Calibration; Triolein embedded cellulose acetate membranes TECAM; Performance reference compounds PRCs; Passive sampling; POLYCYCLIC AROMATIC-HYDROCARBONS; ORGANOCHLORINE PESTICIDES; UPTAKE KINETICS; ENVIRONMENTAL-ANALYSIS; DEVICES SPMDS; SAMPLERS; CONTAMINANTS; RATES; PAHS; LAKE;

D O I：

10.1016/j.envpol.2012.01.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Triolein embedded cellulose acetate membrane (TECAM) passive samplers provide potentially powerful tool for monitoring time weighted average concentrations (C-TWA) of trace hydrophobic organic contaminants in water. To study the field performance of TECAM, exchange kinetics of chemicals between water and TECAM were studied at different temperature and water flow rates. Results showed that the uptake rate constant (k(u)) in TECAM was less sensitive to temperature variation than the SPMD and Chemcatcher. The k(u) in TECAM was sensitive to even a slight change of the flow rate, which required the field calibration using performance reference compounds (PRCs). To estimate C-TWA by TECAM, both empirical model and WBL model were compared in laboratory conditions, and only small differences were observed between the predicted and measured k(u). Field validation was conducted to test the sampler performance alongside spot sampling. A good agreement of water concentration was obtained by the two sampling techniques. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：158 / 163

页数：6

共 34 条

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