水中14种氨基甲酸酯类农药残留测定 |
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引用本文: | 张蓓蓓,章勇,赵永刚,穆肃,陈素兰. 水中14种氨基甲酸酯类农药残留测定[J]. 广州化工, 2013, 0(23): 98-100,104 |
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作者姓名: | 张蓓蓓 章勇 赵永刚 穆肃 陈素兰 |
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作者单位: | [1]国家环境保护地表水环境有机污染物监测分析重点实验室,江苏南京210036 [2]江苏省环境监测中心,江苏南京210036 |
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基金项目: | 2013年标准制修订项目(项目编号:2013-47). |
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摘 要: | 建立了固相萃取(sPE)-超高效液相色谱/三重四极杆串联质谱(uPLc—MS/MS)同时测定水中14种氨基甲酸酯类杀虫剂残留的方法。过滤后的样品经C18固相萃取柱富集净化后,采用BEHC18柱,以水(0.1%甲酸)-甲醇作为流动相进行梯度洗脱,采用串联质谱作为检测器进行检测。14种氨基甲酸酯类杀虫剂在相关线性范围内线性良好(r=O.9978~0.9999),回收率为70.8%-119%,相对标准偏差为2.2%~14.3%,检出限为0.1~2.5ng/L。本方法快速,灵敏度高,适用于测定水体中14种氨基甲酸酯类杀虫剂的残留。
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关 键 词: | 固相萃取 超高效液相色谱 三重四极杆串联质谱 水 氨基甲酸酯类杀虫剂 |
Simultaneous Determination of Fourteen Carbamate Insecticides Residues in Water |
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Affiliation: | ZHANG Bei - bei1'2, ZHANG Yong1'2 , ZHAO Yong - gang1'2, MU Su1,2 , CHEN Su - lan1'2 ( 1 State Environmental Protection Key Laboratory of Monitoring and Analysis for Organic Pollutants in Surface Water, Jiangsu Nanjing 210036; 2 Environment Monitoring Center of Jiangsu Province, Jiangsu Nanjing 210036, China) |
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Abstract: | A method for analysis 14 carbamate insecticides residues in water was developed using solid phase extraction (SPE) and ultra- performance liquid chromatography tandem mass spectrometry (UPLC -MS/MS). The water samples were extracted and cleaned by SPE through CIS column, and then the BEH Cl8 column was used for the separation, with a linear gradient elution program of methanol - 0. 1% formic acid in water as the mobile phase. Multiple reaction monitoring (MRM) was used for the selective detection of 14 carbamate insecticides. There were good linear relations ( r = 0. 9978 - 0. 9999 ) of all the 14 carbamate insecticides during their separate linear range. The recoveries ranged from 70.8% to 119% , with the relative standard deviations of 2.2% -14.3%. The detection limit was between 0. 1 - 2.5 ng/L. |
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Keywords: | SPE UPLC - MS/MS water carbamate insecticides |
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