Zheng Wei-wei, Wang Xia, Tian Da-jun, Wei Xiao, Chen Xin, Zhang Hao, Zhou Ying, Liu Li, Guo Shuai, Jiang Song-hui, Qu Wei-dong
Key Laboratory of Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai, China.
Zhonghua Yu Fang Yi Xue Za Zhi. 2010 Oct;44(10):899-902.
To establish the solid phase extraction-gas chromatography/mass spectrometry (GC/MS) method for qualitative and quantitative determination of several herbicides, fungicides and estrogens in drinking water.
Duplicate 1 L water samples were collected from various treatment processes of different water plants. Target pollutants were extracted by XAD-2 resin from water samples and were eluted by 30% acetone-methanol. GC/MS was employed for qualitative and quantitative analysis of target pollutants.
The linear ranges of standard curves of 6 target compounds including atrazine, alachlor, 4-cumyphenol, thiabendazole, β-estradiol and ethylestradiol were 0.1 - 10 µg/ml and the R(2) values were 0.9915 - 0.9995. The detection limits, the recovery rates, and the relative standard deviation (RSD) were separately 0.01 - 0.40 µg/L, 74.0% - 112.0% and 2.3% - 14.8%. Atrazine (0.11 - 0.13 µg/L), 4-cumyphenol (0.20 - 0.35 µg/L), thiabendazole (0.92 - 1.46 µg/L), β-estradiol (1.02 - 1.32 µg/L) and ethylestradiol (0.96 - 1.66 µg/L)were all detected in raw water, post-coagulation water, post-sedimentation water and finished water using Huangpu River as water source. Alachlor was not detected in any water samples in Huangpu River. The 6 target compounds were not detected in any water samples from the water plants using Yangtse River as water source.
The methods with high sensitivity and satisfying selectivity are suitable to simultaneously qualitative and quantitative determination of target pollutants in drinking water. Concentrations of above-mentioned pollutants in drinking water coming from Huangpu River are obviously higher than in drinking water coming from Yangtze River. Thiabendazole, β-estradiol and ethylestradiol at the level of µg/L exist in drinking water coming from Huangpu River and more attention should be paid to surveillance of future.
建立固相萃取-气相色谱/质谱（GC/MS）法用于定性和定量测定饮用水中的几种除草剂、杀菌剂和雌激素。
从不同水厂的各个处理工艺中采集1L水样，重复采集两份。目标污染物用XAD-2树脂从水样中萃取，并用30%丙酮-甲醇洗脱。采用GC/MS对目标污染物进行定性和定量分析。
阿特拉津、甲草胺、4-异丙基苯酚、噻菌灵、β-雌二醇和炔雌醇6种目标化合物的标准曲线线性范围为0.1 - 10μg/ml，R²值为0.9915 - 0.9995。检测限、回收率和相对标准偏差（RSD）分别为0.01 - 0.40μg/L、74.0% - 112.0%和2.3% - 14.8%。以黄浦江为水源的原水、混凝后水、沉淀后水和成品水中均检测到阿特拉津（0.11 - 0.13μg/L）、4-异丙基苯酚（0.20 - 0.35μg/L）、噻菌灵（0.92 - 1.46μg/L）、β-雌二醇（1.02 - 1.32μg/L）和炔雌醇（0.96 - 1.66μg/L）。黄浦江的任何水样中均未检测到甲草胺。以长江为水源的水厂的任何水样中均未检测到这6种目标化合物。
该方法灵敏度高、选择性好，适用于饮用水中目标污染物的同时定性和定量测定。来自黄浦江的饮用水中上述污染物的浓度明显高于来自长江的饮用水。黄浦江源饮用水中存在μg/L水平的噻菌灵、β-雌二醇和炔雌醇，今后应加强监测。
