苏州市涉水管材浸泡液中16种邻苯二甲酸酯类分析  

Analysis of 16 phthalates esters in soaking solution of water-related pipes and materials in Suzhou City

作　　者：浦阳[1] 张利明[1] 许红睿 张付刚[1] 拜慧雯 PU Yang;ZHANG Li-ming;XU Hong-rui;ZHANG Fu-gang;BAI Hui-wen(Suzhou Municipal Center for Disease Control and Prevention,Jiangsu 215004,China)

机构地区：[1]苏州市疾病预防控制中心,江苏215004

出　　处：《中国卫生检验杂志》2023年第12期1418-1422,1429,共6页Chinese Journal of Health Laboratory Technology

基　　金：苏州市科技局项目(SS202144);苏州市“科教兴卫”青年科技项目(KJXW2022055)。

摘　　要：目的了解江苏省苏州市涉水管材中16种邻苯二甲酸酯类化合物在水中的浸出情况。方法于2022年8月,采集苏州市10家工厂的涉水PPR管材,经水浸泡后,采用气相色谱-质谱联用法(GC-MS)测定浸泡液中邻苯二甲酸酯类(PAEs)的浓度。结果2份PPR管材未有检出,其余8份均有不同浓度的检出,其中邻苯二甲酸二异丁酯、邻苯二甲酸二正丁酯和邻苯二甲酸二(2-乙基)己酯在8份样品中均有检出,邻苯二甲酸二异丁酯含量为0.508μg/L~16.0μg/L,邻苯二甲酸二正丁酯含量为0.668μg/L~9.23μg/L,邻苯二甲酸二(2-乙基)己酯含量为2.14μg/L~8.73μg/L。此外邻苯二甲酸二甲酯、邻苯二甲酸二乙酯、邻苯二甲酸丁基苄基酯和邻苯二甲酸二壬酯在部分管材中被检出,含量为0.014μg/L~0.136μg/L。结论涉水管材中有不同浓度的邻苯二甲酸酯类物质析出,且以邻苯二甲酸二异丁酯、邻苯二甲酸二正丁酯和邻苯二甲酸二(2-乙基)己酯为主,应警惕涉水管材的渗析带来的饮用水中PAEs的污染。Objective This paper aims to investigate the leach of 16 kinds of phthalate esters(PAEs)for water-related pipes and materials in Suzhou City,Jiangsu Province.Methods In August 2022,water-related PPR pipes and materials produced by 10 different factories in Suzhou were collected for the detection of PAEs concentrations in the leaching water samples by gas chromatography-mass spectrometry(GC-MS).Results No PAE was detected in the leaching water samples of 2 PPR pipes and materials,while PAEs were detected at different concentrations in the remaining 8 samples.Diisobutyl phthalate,di-n-butyl phthalate and di-(2-ethylhexyl)phthalate were detected in all of the 8 samples.The concentrations of diisobutyl phthalate,di-n-butyl phthalate and di-(2-ethylhexyl)phthalate were respectively within 0.508μg/L-16.0μg/L,0.668μg/L-9.23μg/L,and 2.14μg/L-8.73μg/L.Dimethyl phthalate,diethyl phthalate,butylbenzyl phthalate and dinononyl phthalate were detected in some samples,with the concentration of 0.014μg/L-0.136μg/L.Conclusion Differ⁃ent concentrations of PAEs were precipitated in water-related pipes and materials,and diisobutyl phthalate,di-n-butyl phthalate and di-(2-ethyl)hexyl phthalate were the main ones.Therefore,PAEs pollution in drinking water caused by the precipitation of PAEs from water-related pipes and materials should be paid attention to.

关 键 词：邻苯二甲酸酯 涉水管材 气相色谱-质谱法 

分 类 号：O657[理学—分析化学]