Fast analysis of ink dyes using the Agilent 1290 Infinity LC System coupled to Agilent 6140 single quadrupole LC/MS System for forensic analysis of ink pens and markers
نویسنده
چکیده
In forensics, the analysis of ink writings from documentation is required for authentication or crime analysis. Ten organic ink dye components typically found in ink pens were separated using the Agilent 1290 Infinity LC System and quantified using the Agilent 6140 single quadrupole LC/MS System. The dyes were separated in less than 3.5 min using a sub-2-μm, 30 mm column. Analysis of ink markings on paper from five black and five blue pens were matched to standard using retention time, mass-to-charge ratio and UV/Vis spectral matching. The results show that the pens can be distinguished from each other based on the percentage of ink dye content. Author Syed Salman Lateef Agilent Technologies, Inc. Bangalore, India Application Note
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