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Detection of polydimethylsiloxanes transferred from silicone‐coated parchment paper to baked goods using direct analysis in real time mass spectrometry
Author(s) -
Jakob Andreas,
Crawford Elizabeth A.,
Gross Jürgen H.
Publication year - 2016
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.3757
Subject(s) - chemistry , parchment , mass spectrometry , dart ion source , silicone , chromatography , analytical chemistry (journal) , organic chemistry , electron ionization , ion , philosophy , theology , ionization
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 [(C 2 H 6 SiO) n + NH 4 ] + in the m/z 800–1900 range. Copyright © 2016 John Wiley & Sons, Ltd.