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http://dx.doi.org/10.5478/MSL.2012.3.1.025

Paint Spray Mass Spectrometry for the Detection of Additives from Polymers on Conducting Surfaces  

Paine, Martin R.L. (ARC Centre of Excellence for Free Radical Chemistry and Biotechnology School of Chemistry, University of Wollongong)
Barker, Philip J. (BlueScope Steel Research)
Blanksby, Stephen J. (ARC Centre of Excellence for Free Radical Chemistry and Biotechnology School of Chemistry, University of Wollongong)
Publication Information
Mass Spectrometry Letters / v.3, no.1, 2012 , pp. 25-28 More about this Journal
Abstract
Paint Spray is developed as a direct sampling ionisation method for mass spectrometric analysis of additives in polymer-based surface coatings. The technique simply involves applying an external high voltage (5 kV) to the wetted sample placed in front of the mass spectrometer inlet and represents a much simpler ionisation technique compared to those currently available. The capabilities of Paint Spray are demonstrated herein with the detection of four commercially available hindered amine light stabilisers; TINUVIN${(R)}$770, TINUVIN${(R)}$292, TINUVIN${(R)}$123 and TINUVIN${(R)}$152 directly from thermoset polyester-based coil coatings. Paint Spray requires no sample preparation or pre-treatment and combined with its simplicity requiring no specialised equipment makes it ideal for use by non-specialists. The application of Paint Spray for industrial use has significant potential as sample collection from a coil coating production line and Paint Spray ionisation could enable fast quality control screening at high sensitivity.
Keywords
Paint spray; Additive; Polymer; Ionzation; Mass spectrometry;
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