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目的调查重庆市包装饮用水中17种邻苯二甲酸酯(PAEs)的污染情况,为评估其安全性提供基础数据。方法采集重庆市大型超市销售的各种品牌瓶装水44份及重庆本地产桶装水33份,共计77份样品,应用GC/MS同位素内标法对其中17种PAEs含量进行监测,同时对23个瓶装水进行耐热(40℃)存放15 d对DEP和DBEP的影响进行比较。结果 77份检品中,检出DEP、DIBP、DBP、DBEP、DNP,其中DEP和DBEP的检出率分别为58.4%和44.2%,DBEP检出的最大值为34.7μg/L。结论重庆市售包装饮用水中17种PAEs除DBEP外,其余16种PAEs的含量水平均较低,不同水质、不同包装之间无统计学差异。
Objective To investigate the pollution of 17 kinds of phthalates (PAEs) in drinking water in Chongqing and provide the basic data for assessing its safety. Methods A total of 44 samples of bottled water of various brands sold in large supermarkets in Chongqing and 33 local samples of bottled water in Chongqing were collected. A total of 77 samples were collected. The contents of 17 PAEs were monitored by GC / MS isotope internal standard method. The effects of DEP and DBEP on bottled water in heat-resistant (40 ° C) storage for 15 days were compared. Results Among 77 samples, DEP, DIBP, DBP, DBEP and DNP were detected. The detection rates of DEP and DBEP were 58.4% and 44.2% respectively, and the maximum value of DBEP was 34.7μg / L. Conclusion The contents of 17 PAEs in commercial packaged drinking water in Chongqing are lower than those in DBP, and there is no significant difference among different water quality and different packaging.