论文部分内容阅读
应用超高效液相色谱-串联质谱法(UPLC-MS/MS)建立了环境水体中27种典型EDCs的分析方法。通过对固相萃取柱、淋洗液、流动相等的优化,确定以Oasis HLB固相萃取柱、二氯甲烷/丙酮(85:15,V/V)为淋洗液、0.1%氨水/乙腈(7:3,V/V)为流动相做水样预处理。在最优条件下,目标物在水中回收率约85.1%~119.8%,相对标准偏差(RSDs)在5.1%~11%,线性范围均在0.1~1000μg/L,各目标物标准品在UPLC-M S/M S系统中线性相关导致(R2)均大于0.997,检出限(S/N=3)为0.15~0.65μg/L,定量限(S/N=10)为0.20~0.81μg/L。该方法可适用于环境水中27种EDCs的同时检测。
The analytical methods of 27 typical EDCs in environmental water were established by UPLC-MS / MS. Through the optimization of solid-phase extraction column, eluent, mobile phase and so on, it was determined that Oasis HLB solid phase extraction column, dichloromethane / acetone (85:15, V / V) 7: 3, V / V) as the mobile phase water pretreatment. Under optimal conditions, the recoveries of target compounds in water ranged from 85.1% to 119.8% with relative standard deviations (RSDs) of 5.1% to 11% and linear ranges of 0.1-1000 μg / L, respectively. The results showed that the linear correlation (R2) of M S / MS system was greater than 0.997, the detection limit (S / N = 3) was 0.15-0.65 μg / L and the limit of quantification was 0.20-0.81 μg / L . The method can be applied to the simultaneous detection of 27 kinds of EDCs in environmental water.