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日用化学工业（中英文）

日用化学工业 ›› 2014, Vol. 44 ›› Issue (2): 115-117.doi: 10.13218/j.cnki.csdc.2014.02.027

• 分析与检测 • 上一篇    

化妆品中咪唑烷基脲的定量分析方法

汪敏1, 金晶2   

  1. 1.天津市产品质量监督检测技术研究院 国家精细石油化工产品质量监督检验中心,天津 300384;
    2.天津师范大学,天津 300387
  • 收稿日期:2013-11-05 发布日期:2019-04-09
  • 作者简介:汪 敏(1980-),女,湖北人,工程师,博士,电话:(022)23078602,E-mail:wangmin0909@gmail.com。

Quantitative analysis of imidazolidinyl urea in cosmetics

WANG Min1, JIN Jing2   

  1. 1.National Speciality Petrochemicals Inspection and Testing Center,Tianjin Product Quality Inspection Technology Research Institute,Tianjin 300384,China;
    2.Tianjin Normal University,Tianjin 300387,China
  • Received:2013-11-05 Published:2019-04-09

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摘要： 建立了一种基于测定咪唑烷基脲释放甲醛的量而对于化妆品中咪唑烷基脲的定量分析方法。咪唑烷基脲在Nash's试剂作用并在一定温度下释放甲醛,经分光光度法测定不同时间的甲醛释放量可用于咪唑烷基脲的定量分析。结果表明,60 ℃下水浴1 h可使咪唑烷基脲中甲醛释放量达到稳定,1 mol的咪唑烷基脲可释放1.116 mol的甲醛。咪唑烷基脲在化妆品中的最低检出限是0.2 mg·L-1,加标回收率为75%~98%。

关键词: 化妆品, 咪唑烷基脲, 甲醛, 分光光度法, Nash's试剂

Abstract: A method for quantitative analysis of imidazolidinyl urea in cosmetics based upon determination of amount of formaldehyde released from imidazolidinyl urea was established.Formaldehyde was released by the action of Nash's reagent on imidazolidinyl urea under a certain constant temperature.Amount of formaldehyde released at different time was measured via spectrophotometric method and can be used for the quantitative analysis of imidazolidinyl urea.Results showed that,under 60 ℃ for 1 h,release of the formaldehyde from imidazolidinyl urea can achieve a stable state and completed.1 mol of imidazolidinyl urea can release 1.116 mol of formaldehyde.The lowest limit of detection is 0.2 mg·L-1 and the spiked recoveries of the method range within 75%-98%.

Key words: cosmetics, imidazolidinyl urea, formaldehyde, spectrophotometric method, Nash's reagent

中图分类号: 

  • TQ658