- P-ISSN 2233-4203
- E-ISSN 2093-8950
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 placedin 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 lightstabilisers; TINUVIN® 770, TINUVIN® 292, TINUVIN® 123 and TINUVIN® 152 directly from thermoset polyester-based coilcoatings. Paint Spray requires no sample preparation or pre-treatment and combined with its simplicity – requiring no specialisedequipment – makes it ideal for use by non-specialists. The application of Paint Spray for industrial use has significant potentialas sample collection from a coil coating production line and Paint Spray ionisation could enable fast quality controlscreening at high sensitivity.
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