Comments on: Non-destructive Method To Detect Forgery http://www.justchromatography.com/ms/desi-ms-detect-forgery Everything about Chromatography and Analytical Chemistry Wed, 08 Sep 2010 11:26:26 +0000 http://wordpress.org/?v=2.3 By: Chip http://www.justchromatography.com/ms/desi-ms-detect-forgery#comment-574 Chip Thu, 11 Sep 2008 20:35:13 +0000 http://www.justchromatography.com/ms/desi-ms-detect-forgery#comment-574 Here's an earlier article using a different open-air ion source: ??Differentiating Writing Inks Using Direct Analysis in Real Time Mass Spectrometry.? Roger W. Jones; Robert B. Cody.; John F. McClelland, Journal of Forensic Science, July 2006, Vol. 51, No. 4, pages 915-918 This shows dyes, but also ink lubricants and other fingerprint compounds in ballpoint pen inks. I just visited Ames Lab recently and Roger Jones has been able to show how to detect the AGE of a signature from the DART spectrum. It's nice work. He's writing the article. Here’s an earlier article using a different open-air ion source:

??Differentiating Writing Inks Using Direct Analysis in Real Time Mass Spectrometry.? Roger W. Jones; Robert B. Cody.; John F. McClelland, Journal of Forensic Science, July 2006, Vol. 51, No. 4, pages 915-918

This shows dyes, but also ink lubricants and other fingerprint compounds in ballpoint pen inks. I just visited Ames Lab recently and Roger Jones has been able to show how to detect the AGE of a signature from the DART spectrum. It’s nice work. He’s writing the article.

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