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Migrants found in migration solutions obtained from commercially available polyethylene products that may contain food were studied and analysed via liquid chromatography coupled with quadrupole time-of-flight mass spectrometry （LC-QTOF） for non-target screening and LC-MS/MS for quantifying 14 substances in migration solutions. Furthermore, an analytical approach based on the retention gap was developed for accurate separation techniques using LC-MS/MS. Irganox 1076 was detected at a maximum of 1.5 mg/kg, which was 1/4 of the Specific Migration Limit in the EU, in nine commercially available plastic bags tested. This is in accordance with European Regulation No 10/2011/EU. Furthermore, migration of Erucamide and Irgafos 168-oxide was confirmed. [ABSTRACT FROM AUTHOR]

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The effects of F Polymer, which is a unique acrylate copolymer with short fluoroalkyl chains, in fluorine lyophobic resists on lyophobic and development properties were characterized by contact angle measurements, quartz crystal micro balance (QCM) studies, and gradient shaving preparation TOF-SIMS (GSP TOF-SIMS) methods. The lyophobic resist had a good balance between lyophobic and development properties. Some segregation of F Polymer in the resist film occurred during spin coating and a segregation layer was formed with 50 nm thickness near the surface. [ABSTRACT FROM AUTHOR]