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用负APCI源的液相色谱-质谱联用法测定牙膏中二甘醇的方法研究
引用本文:郑建国,王瓒,余雯静,施军,陈明. 用负APCI源的液相色谱-质谱联用法测定牙膏中二甘醇的方法研究[J]. 检验检疫科学, 2011, 0(1): 45-47
作者姓名:郑建国  王瓒  余雯静  施军  陈明
作者单位:扬州出入境检验检疫局;苏州出入境检验检疫局;
基金项目:江苏出入境检验检疫局科研项目(2008KJ09)
摘    要:
本文提出一种采用负APCI源的LC-MS-MS测定牙膏中二甘醇含量的方法。在选定的条件下,该方法检出限为1ug/L,线性范围为5.00ug/L~500ug/L,在该浓度范围内测定的重复性RSD在2.5%~1.1%之间。该方法无需改装仪器,无需特殊流动相,操作简单,易于推广,极具实用价值。

关 键 词:二甘醇  牙膏  负APCI源  液质联用

Study of the Method of Determination of DEG in Teeth Paste by Negative APCI Source LC/MS/MS
Zheng Jianguo,Wang Zan,Yu Wenjing,Shi Jun,Chen Ming. Study of the Method of Determination of DEG in Teeth Paste by Negative APCI Source LC/MS/MS[J]. Inspection and Quarantine Science, 2011, 0(1): 45-47
Authors:Zheng Jianguo  Wang Zan  Yu Wenjing  Shi Jun  Chen Ming
Affiliation:Zheng Jianguo1,Wang Zan1,Yu Wenjing2,Shi Jun1,Chen Ming1(1.Yangzhou Entry-Exit Inspection and Quarantine Bureau,Yangzhou,Jiangsu,225009,2.Suzhou Entry-Exit Inspection and Quarantine Bureau)
Abstract:
A method based on LC-MS-MS with negative APCI source was developed for the determination of the diethylene glycol(DEG) in toothpaste products.Under the optimized working conditions,the detection limit is 1ug/L,the linear range is 5.00ug/L-500ug/L.In this range the RSD of repeat detection is from 1.1% to 2.5%.This method need not changing the instrument and special mobile phase.The operation and the popularization are easy,and it is very practical.
Keywords:Diethylene Glycol  Toothpaste  Negative APCI Source  LC-MS-MS  
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