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

作者：Jakob Andreas; Crawford Elizabeth A; Gross Juergen H^*

来源：Journal of Mass Spectrometry, 2016, 51(4): 298-304.

DOI：10.1002/jms.3757

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

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.

• 出版日期2016-4