Background Investigation on Steroid Estrogens in the Drinking Water Sources in Kunming
In this paper,derivatization and gas chromatography-tandem mass spectrometry were used to test the concentrations of natural Estrone(E1),estradiol(17β-Estradiol,E2),Estriol(E3)and synthetic ethinyl estradiol(17α-ethynylestradiol,EE2)in the drinking water sources of Kunming.The detection limits of E1,E2,EE2 and E3 were 1.98,1.86,2.57 and 1.93ng/L,respectively.The concentrations of four estrogens in the six main drinking water sources(Songhuba,Dahe,Qingshuihai,Yunlong,Baoxianghe,Ziweicun Reservoir)in the main urban area of Kunming were all lower than the detection limits,indicating that steroid estrogens were not detected.
steroid estrogensderivatization and gas chromatography-tandem mass spectrometrydrinking water source