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
Chinese Journal of Forensic Sciences

›› 2005 ›› Issue (01): 11-14.

• 论文 • Previous Articles     Next Articles

Examination of Photocopy Toners by Pyrolysis Gas Chromatography

WANG Ying-qiang, JIANG Hua,LIU Ming-hui, WANG Cong-hui(Chinese People's Public Security University, Beijing100038, China;Institute of Criminal Science and Technology, Beijing Public Security Bureau, Beijing 100000, China; Institute of Forensic Science, Mi   

裂解气相色谱法检验静电复印墨粉

王英强,姜华,刘明辉,汪聪慧   

  1. 中国人民公安大学研究生部,北京市公安局刑事科学技术研究所,北京市公安局刑事科学技术研究所,公安部物证鉴定中心 北京 100038 ,北京 100000 ,北京 100000 ,北京 100038

Cited

4

Abstract: Photocopy toners were collected and analyzed with Pyrolysis Gas Chromatography Spectrometry (Py-GC). Minor differences in composition of photocopy toners of different factories and different brands of the same factories were detected. In the study, an improved Munson's sampling method was employed and effects of paper fiber were eliminated. Results of the method were stable and repeatable, and the discriminating rate readied 90.3%.

Key words: Py-GC, photocopy toner, qualitative analysis

摘要： 静电复印墨粉是复印文件检验的重要组成部分。本文通过电熨斗加热提取纸张上的墨粉,排除了纸张的平扰,用裂解气相色谱法对9个厂家共23个型号的墨粉进行检验。研究表明。该方法灵敏度高,分辨能力强,区分率可达到90.3％,是一种有效的检验方法。

关键词: 裂解气相色谱法, 静电复印墨粉, 定性分析