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- W2360585114 abstract "In this study,ESI LC MS method was used to analyze 4 estrogens(estrone(E1),17 β estradiol(E2),estriol(E3),ethynyl estradiol(EE))in surface water,and the effects of mobile phase on the sensitivities of 4 estrogens was investigated.When CH 3CN/H 2O,CH 3CN/CH 3OH/H 2O,CH 3OH/H 2O were used as mobile phase,the limits of detection were 330-750 ng·l -1 ,100-300ng·l -1 ,50-100ng·l -1 ,respectively.On the other hand,CH 3CN/H 2O,CH 3CN/CH 3OH/H 2O can separate 4 objective compounds,while the E1,E2 and E2 can not be separated completely when CH 3OH/H 2O was used as mobile phase.Finally,the method based on the off line solid phase extraction(SPE)and ESI LC MS was applied to analyze the four estrogens in surface water which were taken from Hangzhou river basin.The EE was detected in 7 samples,and its concentration ranged from 1 17 to 3 35ng·l -1 .E1 and E3 were not detected in all sample,and E 2(0 32ng·l -1 )was found in only one sample." @default.
- W2360585114 created "2016-06-24" @default.
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- W2360585114 date "2003-01-01" @default.
- W2360585114 modified "2023-09-25" @default.
- W2360585114 title "DETEMINATION OF TRACE ESTROGENS IN SURFACE WATER USING SPE-LC-MS" @default.
- W2360585114 hasPublicationYear "2003" @default.
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