再生水中内分泌干扰物的初步研究  

Endocrine Disrupting Compounds in Reclaimed Water Produced by a Certain Water Plant: Some Preliminary Results

作　　者：曹仲宏[1] 马永民[2] 胡伟[1] 王玉秋[1] 刘克明[2] 庄源益[1] 

机构地区：[1]南开大学环境科学与工程院,天津300071 [2]天津市卫生防病中心,天津300011

出　　处：《环境与健康杂志》2005年第3期171-173,共3页Journal of Environment and Health

基　　金：天津市自然科学基金资助项目(043606011);南开大学创新基金资助课题

摘　　要：目的研究再生水中内分泌干扰物的分布。方法用固相萃取-气相色谱-质谱联用(SPE-GC-MS)技术测定某再生水厂原水、混凝-絮凝处理后出水、微孔膜处理后出水和臭氧氧化处理后出水中的雌激素酮(estrone,E1)、17β-雌二醇(17β-estradiol,E2)、17α-乙炔基雌二醇(17α-ethynylestradiol,EE2)、4-叔-辛基酚(4-tert-octylphenol,OP)、4-壬基酚(4-nonylphenol,NP)、双酚A(bisphenolA,BPA)、邻苯二甲酸二异丁酯(diisobutylphthalate,DIBP)、邻苯二甲酸二正丁酯(di-n-butylphthalate,DnBP)、邻苯二甲酸二(2-乙基己基)酯犤di(2-ethylhexyl)phthalate,DEHP犦共9种内分泌干扰物。结果上述9种内分泌干扰物在原水、混凝-絮凝处理后出水、微孔膜处理后出水和臭氧氧化处理后出水中的浓度呈下降趋势。原水中上述9种内分泌干扰物的浓度均值分别为1.54、2.48、4.38、0.66、0.87、2.33ng/L和7.77、4.83、11.78μg/L;臭氧氧化处理后出水中浓度均值分别为0.39、1.73、0.40、0.18、0.34、1.02ng/L和5.39、2.54、3.92μg/L。结论内分泌干扰物在再生水处理过程中并未得到完全去除。Objective To study the concentrations of endocrine disrupting compounds in reclaimed water samples. Methods A solid-phase extraction (SPE)-gas chromatography (GC)-mass spectrometry (MS) analytical method was used for the separation and determination of endocrine disrupting compounds (EDCs) from water samples. The water samples were collected from each process of the reclaimed water plant of Tianjin, China. Important and contrasting EDCs including estrone (E1), 17β-estradiol (E2), 17α-ethynylestradiol (EE2), 4-tert-octylphenol (OP), 4-nonylphenol (NP), bisphenol A (BPA), di-n-butyl phthalate (DnBP), diisobutyl phthalate (DIBP), and di (2-ethylhexyl) phthalate (DEHP) were selected as the target compounds. C-18 solid-phase extraction (SPE) technique was used for the extraction recoveries of target compounds from water samples while ethyl acetate was efficient in eluting EDCs from SPE cartridges. After elution from the SPE column, the t-butyldimethylsilyl (TBS) derivatives of EDCs with N-methyl-N-(tertbutyldimethylsilyl) trifluoroacetamide (MTBSTFA) were analyzed by GC-MS in the selected ion mode (SIM). Results Concentrations of steroid hormones, phenolic compounds and phthalate esters ranged from not detected to 7.01 ng/L, 4.85 ng/L, and 0.03 μg/L to 23.82 μg/L, respectively. Conclusion Environmental endocrine disrupting compounds are not completely removed in the process of reclaimed water treatment and will be carried over into the general aquatic environment as it will be reused.

关 键 词：水污染 再生水 内分泌干扰物 类固醇激素 烷基酚类化合物 邻苯二甲酸酯 

分 类 号：R123.3[医药卫生—环境卫生学]