主管:中华人民共和国司法部
主办:司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N

中国司法鉴定 ›› 2012 ›› Issue (2): 26-29.

• • 上一篇    下一篇

SEM/EDS法和XRF法在电工胶带检验中的应用

孙振文1,2,权养科2,陶克明2   

  1. 1.中国人民公安大学,北京 100038; 2.公安部物证鉴定中心,北京 100038
  • 收稿日期:2011-08-14 出版日期:2012-03-15 发布日期:2022-07-12
  • 作者简介:孙振文(1983—),男,助理研究员,博士研究生,主要从事微量物证检验方面的研究。
  • 基金资助:

    中国人民公安大学学科建设与研究生创新项目(YX11020);基本科研业务费专项资金重点项目(2009JB006)

The Application of SEM/EDS and XRF Methods in Insulation Tapes Analysis

SUN Zhen-wen1,2, QUAN Yang-ke2, TAO Ke-ming2   

  1. 1. Chinese People’s Public Security University, Beijing 100038, China; 2. Institute of Forensic Science, Ministry of Public Security, Beijing 100038, China
  • Received:2011-08-14 Published:2012-03-15 Online:2022-07-12

摘要:

目的 探索电工胶带带基的元素检验方法。方法 利用扫描电镜/能谱法(SEM/EDS)对电工胶带带基中的主体元素进行定量分析,通过SPSS软件对SEM/EDS定量分析法检测出的主体元素(Cl和Ca)相对含量进行统计分析;利用X射线荧光光谱法(XRF)对电工胶带带基中的微量元素进行定性分析。结果 34个品牌红色电工胶带组成的561组样品对通过SEM/EDS定量分析法可以区分539组,区分率达到96.1%;根据XRF法定性分析测出的Mg、Al、Si、S、Ti、Sb、Ba、Pb微量元素的不同组合可将34种电工胶带分成11组,两种方法结合可使不同品牌红色电工胶带的区分率达到98.4%。结论 SEM/EDS法和XRF法结合可以实现同种颜色、不同品牌电工胶带的高效区分。

关键词: 电工胶带, 带基, 扫描电镜/能谱法, X射线荧光光谱法, 元素分析

Abstract:

Objective To study the analytical methods of the elements in the backing of insulation tapes of the same color. Method Scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) was used for determining the relative amounts of two main elements, Cl and Ca, in the backing, and SPSS software was used for statistical analysis. X-ray fluorescence (XRF) was used for detecting the trace elements. Results Through the SEM/EDS quantitative analysis by comparing the relative amounts of Cl and Ca, 539 sample groups could be distinguished from the total 561 groups, and the discrimination rate was 96.1%. Based on the XRF qualitative analysis, 34 brands of red insulation tapes were divided into 11 groups according to their different combinations of Mg、Al、Si、S、Ti、Sb、Ba、Pb. The total discrimination rate was 98.4% when combining these two methods. Conclusion SEM/EDS and XRF methods can be used to distinguish different brands of insulation tapes of the same color.

Key words: insulation tape, backing, SEM/EDS, XRF, elemental analysis

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