太原市居民小区自来水和净化水中16种多环芳烃的检测  

Detection of 16 polycyclic aromatic hydrocarbons in tap water and purified water from residential areas in Taiyuan

作　　者：刘海芳[1] 徐建军[1] 张志红[1] 韩建彪[1] 王祝欣[1] 

机构地区：[1]山西医科大学公共卫生学院环境卫生学教研室,山西太原030001

出　　处：《中国卫生检验杂志》2014年第6期882-884,共3页Chinese Journal of Health Laboratory Technology

基　　金：山西医科大学大学生创新基金课题(2010-2012)

摘　　要：目的建立生活饮用水中16种多环芳烃的检测方法,并比较自来水和以自来水为水源的净化水中多环芳烃污染水平。方法采用紫外-荧光检测器串联,固相萃取-高效液相法,检测太原市居民小区自来水和以自来水为水源的净化水中痕量多环芳烃。结果仪器检出限为0.02 ng/L^3 ng/L,方法精密度(RSD,n=7)为5.3%~10.5%。在自来水和净化水水样中尚未发现苯并(a)芘的污染,只有部分水样中检出了萘、苊烯、苊、芴、菲、屈、苯并(b)荧蒽等7种多环芳烃,其中以三环的多环芳烃居多,五环以上未检出,且其浓度均明显低于生活饮用水里苯并(a)芘的限值。部分小区净化水中多环芳烃含量比自来水中偏高。结论紫外-荧光检测器串联,固相萃取-高效液相法可以定量检测生活饮用水中16种多环芳烃,太原市居民小区自动售水机的出水水质应加强监管。Objective To establish a method for determination of 16 polycyclic aromatic hydrocarbons （PAHs） in drinking wa- ter and compare the PAHs pollution levels between tap water and purified water processed from tap water. Methods Trace a- mounts of PAHs in tap water and purified water were detected by UV - fluorescence detector and solid phase extraction - HPLC method. Results The instrument detection limit was 0.02 ng/L - 3 ng/L and the method precision （RSD, n = 7） was 5.3% -10.5%. Benzo A Pyrene（BaP） was not detected in both tap water and purified water. Seven PAHs, such as naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, chrysene, benzo[ b ] fluoranthene were detected only in part of the samples, and most were three - ring PAHs, five - ring PAHs were not detected. The PAHs levels were distinctly lower than BaP limit in drinking water. The PAHs levels of purified water were higher than tap water in part of districts. Conclusion UV - flu- orescence detector in series and solid phase extraction - HPLC method was available for quantitative determiantion of 16 PAHs in drinking water. The water quality of automatic water dispenser should be strengthened supervision in residential areas of Taiyuan.

关 键 词：多环芳烃 自来水 净化水 

分 类 号：R123.1[医药卫生—环境卫生学]