| 液相色谱-串联质谱联用法测定食品中三聚氰胺残留量 |
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| 引用本文： | 夏崇菲,赵善贞,韩丽,郭德华,邓晓军,陈舜胜.液相色谱-串联质谱联用法测定食品中三聚氰胺残留量[J].理化检验(化学分册),2009(12). |
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| 作者姓名： | 夏崇菲 赵善贞 韩丽 郭德华 邓晓军 陈舜胜 |
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| 作者单位： | 上海海洋大学食品学院;上海出入境检验检疫局; |
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| 摘 要： | 提出了液相色谱-串联质谱联用法测定动物源性食品中三聚氰胺残留量的方法。样品采用乙腈进行提取,饱和氯化钠溶液进行分配经反相色谱分离后,串联质谱法进行测定,同位素内标法进行定量,方法的测定下限(10S/N)为0.05 mg·kg~(-1),以5类食品样品为基体,加入4种不同浓度水平的三聚氰胺标准作回收试验,测得回收率在72.9$～104.1%之间,测定值的相对标准偏差(n=6)在4.7%～15.2%之间。
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| 关 键 词： | 液相色谱 串联质谱 三聚氰胺 动物源性食品 快速测定 |
Determination of Residual Amount of Melamine in Foodstuffs by Hyphenation of Liquid Chromatography and Mass Spectrometry in Tandem |
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| XIA Chong-fei,ZHAO Shan-zhen,HAN Li,GUO De-hua,DENG Xiao-jun,CHEN Shun-sheng. College of Food Science j Shanghai Ocean University,Shanghai ,China.Determination of Residual Amount of Melamine in Foodstuffs by Hyphenation of Liquid Chromatography and Mass Spectrometry in Tandem[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2009(12). |
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| Authors: | XIA Chong-fei ZHAO Shan-zhen HAN Li GUO De-hua DENG Xiao-jun CHEN Shun-sheng College of Food Science j Shanghai Ocean University Shanghai China |
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| Institution: | XIA Chong-fei~1,ZHAO Shan-zhen~2,HAN Li~2,GUO De-hua~2,DENG Xiao-jun~2,CHEN Shun-sheng~11. College of Food Science j Shanghai Ocean University,Shanghai 201306,China,2. Shanghai Entry-Exit Inspection and Quarantine Bureau,Shanghai 200135 |
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| Abstract: | It was reported that residual amount of melamine in foodstuffs of animal origin was determined by LC-MS/MS. Melamine was separated from the sample, in which standard melamine labelled with ~(15)N_3 was added as internal standard, by extraction with acetonitrile and partitioned with saturated sodium chloride solution. After centrifugation, an aliquot of the supernatant was taken for separation by reverse phase liquid chromatography and the content of melamine was determined by MS/MS. Lower limit of determina... |
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| Keywords: | Liquid chromatography MS/MS in tandem Melamine Foodstuffs of animal origin Rapid determination |
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