• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Microwave induced plasma desorption ionization (MIPDI) mass spectrometry for qualitative and quantitative analysis of preservatives in cosmetics
【24h】

Microwave induced plasma desorption ionization (MIPDI) mass spectrometry for qualitative and quantitative analysis of preservatives in cosmetics

机译：微波诱导等离子体解吸电离（MIPDI）质谱用于化妆品中防腐剂的定性和定量分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ambient ion sources for mass spectrometry have been frequently reported in the past 10 years. The most attractive features of these ion sources are that they are fast and an easy way to analyze various samples. The microwave induced plasma desorption ionization source, the MIPDI source, is one among them. In this study, the qualitative and quantitative behavior of the MIPDI source has been demonstrated by analyzing the preservatives in cosmetics for the first time. The detection limit for the preservatives is as low as pg mm(-2). The relative standard deviation of continuous analysis is 5.25%. Preservatives in commercial cosmetics samples were successfully detected including those in facial cream, sunscreen and moisturizer. The fast screening capability of the MIPDI source is proved. Five commercial samples were successfully classified into two groups within 5 minutes according to the added preservatives. The ability to quantitatively analyze the preservatives in commercial cosmetics was also investigated. The standard adding and calibration curve methods were used in the quantitation process. The results showed that the quantitative analysis accuracy of MIPDI-MS is -49% and -66% for a liquid state sample and solid state sample respectively, i.e. semi-quantitation is possible. A conceptual experiment was also conducted to validate the accurate quantitative analysis capability of MIPDI-MS. The concentration of caffeine in cosmetic matrices was quantified satisfactorily with no sample pretreatment, with an RSD value of 5.5% and accuracy of 3.6%. The approaches established in this work indicate that the MIPDI source is a promising tool in future applications where rapid qualitative and quantitative analysis is needed.
机译：在过去的十年中，已经经常报道了用于质谱法的环境离子源。这些离子源最吸引人的特点是它们快速而简便地分析各种样品的方法。微波诱导等离子体解吸电离源，即MIPDI源，就是其中之一。在这项研究中，首次通过分析化妆品中的防腐剂证明了MIPDI来源的定性和定量行为。防腐剂的检出限低至pg mm（-2）。连续分析的相对标准偏差为5.25％。已成功检测到商业化妆品样品中的防腐剂，包括面霜，防晒霜和保湿剂中的防腐剂。证明了MIPDI源的快速筛选能力。根据添加的防腐剂，在5分钟内将5个商业样品成功地分为两组。还研究了定量分析商业化妆品中防腐剂的能力。在定量过程中使用标准添加和校准曲线方法。结果显示，对于液态样品和固态样品，MIPDI-MS的定量分析准确度分别为-49％和-66％，即可以半定量。还进行了概念性实验，以验证MIPDI-MS的准确定量分析能力。无需样品预处理即可令人满意地定量化妆品基质中咖啡因的浓度，RSD值为5.5％，准确度为3.6％。在这项工作中建立的方法表明，在需要快速定性和定量分析的未来应用中，MIPDI源是有前途的工具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号