Detection of polydimethylsiloxanes transferred from silicone‐coated parchment paper to baked goods using direct analysis in real time mass spectrometry |
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| Authors: | Andreas Jakob Elizabeth A Crawford Jürgen H Gross |
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| Institution: | 1. Bruker Daltonik GmbH, Bremen, Germany;2. Institute of Bioanalytical Chemistry, Saarland University, Saarbrücken, Germany;3. Institute of Organic Chemistry, Heidelberg University, Heidelberg, Germany |
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| 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. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | direct analysis in real time DART polydimethylsiloxanes PDMS parchment paper extraction baking cookies pizzas accurate mass quadrupole‐time‐of‐flight mass spectrometer mass spectrometry |
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