气相色谱-三重四极杆串联质谱法测定池塘养殖水中3种丁香酚类麻醉剂
Chinese Journal of Analysis Laboratory(2021)
Abstract
建立了池塘养殖水中丁香酚、甲基丁香酚和异丁香酚等3种丁香酚类麻醉剂的残留测定方法.采用正己烷提取,苯基固相萃取柱净化,气相色谱-三重四极杆串联质谱仪进行测定.结果显示,丁香酚、甲基丁香酚和异丁香酚检测限分别为0.05,0.03,0.13 μg/L,定量限分别为0.17,0.10,0.43 μg/L;在1~200μg/L质量浓度范围内,3种化合物线性良好,相关系数r>0.9996;丁香酚、甲基丁香酚和异丁香酚回收率范围分别为98.5%~101.6%,98.5%~104.6%和98.4%~101.3%,相对标准偏差范围分别为2.3%~5.3%,3.2%~4.1%和2.4%~3.6%.方法能够满足养殖水中丁香酚、甲基丁香酚和异丁香酚同时测定的需要.
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