【摘要】 目的建立生活饮用水及水源水中灭草松、莠去津、2,4-滴、呋喃丹、五氯酚、微囊藻毒素-LR、微囊藻毒素-RR残留量的检测的超高效液相色谱-串联质谱(UPLC-MS/MS)分析方法。方法水样经微孔滤膜过滤后直接进样,采用超高效液相色谱-串联质谱电喷雾电离(ESI),多反应监测(MRM)模式检测7种有机污染物。结果灭草松、莠去津、呋喃丹、微囊藻毒素-LR、微囊藻毒素-RR在0.5~10μg/L范围内;2,4-滴、五氯酚在5~100μg/L范围内,均呈良好的线性关系,加标回收率在85.3%~103.9%,所测定的相对标准偏差在1.98%~4.78%之间。结论此方法灵敏快速,结果准确可靠,适用于生活饮用水及水源水中7种有机污染物残留检测。更多还原

【Abstract】 Objective To establish a ultra performance liquid chromatography-mass/mass spectrometry method for the simultaneous determination of bentazone,atrazine,2,4-D,carbofuran,pentachlorophenol,microcystin-LR and microcystin-RR in drinking water and source water.Methods The water sample was cleaned by millipore filtration; detected by ultra performance liquid chromatography-mass/mass spectrometry.Identification was achieved by a mass spectrometer coupled with ESI and MRM mode.Results The linear rangers for bentazone,atrazine,carbofuran,microcystin-LR and microcystin-RR was good in the range of 0.5-10 μg/L and the linear rangers for 2,4-D and pentachlorophenol was good in the range of 5-100 μg/L.The recovery of the method was 85.3%-103.9% and relative standard deviation(RSD) was1.98%-4.78%.Conclusion The method is accurate,quick,reliable for the determination of seven organic contaminants residue in drinking water and source water.更多还原