Applications of electrospray laser desorption ionization mass spectrometry for document examination

Applications of electrospray laser desorption ionization mass spectrometry for document examination

We have employed electrospray laser desorption ionization mass spectrometry (ELDI‐MS) to rapidly characterize certain classes of compounds – the inks within the characters made by inks and inkjet printer on regular paper and the chemical compounds within thermal papers. This ELDI‐MS approach allowed...

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Veröffentlicht in:Rapid communications in mass spectrometry 2010-01, Vol.24 (2), p.203-208
Hauptverfasser: Cheng, Sy-Chyi, Lin, Yu-Shan, Huang, Ming-Zong, Shiea, Jentaie
Format: Artikel
Sprache:eng
Schlagworte:
Desorption
Droplets
Equipment Design
Ink
Inks
Ionization
Lasers
Mass spectrometry
Plumes
Spectrometry, Mass, Electrospray Ionization - economics
Spectrometry, Mass, Electrospray Ionization - instrumentation
Spectrometry, Mass, Electrospray Ionization - methods
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Zusammenfassung:We have employed electrospray laser desorption ionization mass spectrometry (ELDI‐MS) to rapidly characterize certain classes of compounds – the inks within the characters made by inks and inkjet printer on regular paper and the chemical compounds within thermal papers. This ELDI‐MS approach allowed the ink and paper samples to be distinguished in terms of their chemical compositions. Sample pretreatment was unnecessary and the documents were practically undamaged after examination. The ink chemicals on the documents were desorbed through laser irradiation (sampling spot area:
ISSN:0951-4198
1097-0231
1097-0231
DOI:10.1002/rcm.4378