药品和个人护理用品类污染物（PPCPs）在北江流域的浓度分布特性初探

A Preliminary Study on the Concentration Distribution Characteristics of Pharmaceutical and Personal Care Product Pollutants(PPCPs) in Beijiang River Basin

采集了北江流域10个点位的水样,经过固相萃取、氮吹、重构等预处理后,将水样浓缩2000倍,采用高效液相色谱-串联质谱法测定8种典型PPCPs的浓度。结果表明,在所取的10个点位的水样中,均检出了不同浓度的PPCPs,其中,在五星测点水样中检出了高达356 ng/L的咖啡因。就PPCPs含量高低而言,五星、丰年以及新花港测点水质较差,紫洞、新境、沙口、石湾和润石大桥测点的水质相对较好。

Water samples from 10 points in the Beijiang river basin were collected.After pretreatment such as solid phase extraction,nitrogen blowing,and,the water samples were concentrated 2000 times,and the concentrations of eight typical PPCPs were determined by HPLC-MS.The results showed that different concentrations of PPCPs were detected in all water samples taken from the10 points,and the highest concentration was Caffeine at Wuxing,which is reached 356 ng/L.In general,the content of PPCPs at three points,such as Wuxing,Fengnian and Xinhuagang,was relatively high,and the Zidong,Xinjing,Shakou,Shiwan and Runshi Bridges’s content of PPCPs was relatively lower.