Mass Spectrometry Letters

Korean Society for Mass Spectrometry (한국질량분석학회)
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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)
  • Received : 2012.03.08
  • Accepted : 2012.03.13
  • Published : 2012.03.15
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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

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