Detection of polydimethylsiloxanes transferred from silicone-coated parchment paper to baked goods using direct analysis in real time mass spectrometry

J Mass Spectrom. 2016 Apr;51(4):298-304. doi: 10.1002/jms.3757.

Abstract

The non-stick properties of parchment papers are achieved by polydimethylsiloxane (PDMS) coatings. During baking, PDMS can thus be extracted from the silicone-coated parchment into the baked goods. Positive-ion direct analysis in real time (DART) mass spectrometry (MS) is highly efficient for the analysis of PDMS. A DART-SVP source was coupled to a quadrupole-time-of-flight mass spectrometer to detect PDMS on the contact surface of baked goods after use of silicone-coated parchment papers. DART spectra from the bottom surface of baked cookies and pizzas exhibited signals because of PDMS ions of the general formula [(C2H6SiO)n + NH4 ](+) in the m/z 800-1900 range.

Keywords: DART; PDMS; accurate mass; baking; cookies; direct analysis in real time; extraction; mass spectrometry; parchment paper; pizzas; polydimethylsiloxanes; quadrupole-time-of-flight mass spectrometer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cooking* / methods
  • Dimethylpolysiloxanes / analysis*
  • Food Contamination / analysis*
  • Food Packaging* / methods
  • Mass Spectrometry / methods*
  • Paper*
  • Silicones / chemistry*

Substances

  • Dimethylpolysiloxanes
  • Silicones
  • baysilon