| 固相萃取-高效液相色谱/质谱串联法分析奶牛饮用水中莠去津及其6种代谢物的残留 |
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| 引用本文： | 石冬冬,常碧影,石波,田园.固相萃取-高效液相色谱/质谱串联法分析奶牛饮用水中莠去津及其6种代谢物的残留[J].中国农业科技导报,2012,14(6):145-152. |
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| 作者姓名： | 石冬冬 常碧影 石波 田园 |
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| 作者单位： | (1.中国农业科学院饲料研究所, 北京 100081,2.中国农业科学院农业质量标准与检测技术研究所, 北京 100081) |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项(1610332012013)资助 |
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| 摘 要： | 建立了高效液相色谱质谱联用检测奶牛饮用水中莠去津及其6种代谢物残留的同步分析方法。利用MCX固相萃取柱富集净化，采用液相色谱-质谱串联进行测定，外标法定量。结果表明莠去津及其代谢物在0.4~100 μg/L范围内线性良好，标准曲线相关系数r2均大于0.99。在0.03～3 μg/L浓度范围内，平均加标回收率除脱异丙基羟基莠去津的较低(64.17%)外，其他目标物的回收率在71.31％~116.67％之间，相对标准偏差为0.97％~12.03％。7种目标物的检出限为0.01 μg/L，方法的灵敏度较高，且简便、快速。
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| 关 键 词： | 莠去津 液相色谱质谱联用 饮用水 代谢物 |
Determination of Trace Atrazine and its Six Metabolites in Water by Solid Phase Extraction and Liquid Chromatography/Mass Spectrometry |
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| SHI Dong-dong,CHANG Bi-ying,SHI Bo,TIAN Yuan.Determination of Trace Atrazine and its Six Metabolites in Water by Solid Phase Extraction and Liquid Chromatography/Mass Spectrometry[J].Journal of Agricultural Science and Technology,2012,14(6):145-152. |
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| Authors: | SHI Dong-dong CHANG Bi-ying SHI Bo TIAN Yuan |
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| Institution: | (1.Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081|2.Institute of Quality Standard and Testing Technology for Agro Products, CAAS, Beijing 100081, China) |
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| Abstract: | A sensitive LC MS/MS method for simultaneously analyzing atrazine and its 6 metabolites in cattle drinking water was established. The samples were enriched and purified by MCX solid phase column, determined by LC MS/MS, and quantified by outer standard. The results showed that the linear range spanned from 0.4 to 100 μg/L with correlation index r2 greated than 0.99. At the concentration range of 0.03～3 μg/L, except the recovery of desisopropyl 2 hydroxy was 6417%, others were 71.31%~116.67% with relative standard deviations ranging from 097％ to 12.03%. The limits of detection (LOD) of 7 substances analyses were 0.1 μg/L. Those indicated the method was rapid, cost effective and suitable for water sample analysis. |
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| Keywords: | atrazine HPLC MS drinking water metabolites |
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