<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Els Van Hoeck</style></author><author><style face="normal" font="default" size="100%">De Schaetzen, T</style></author><author><style face="normal" font="default" size="100%">Pacquet, C</style></author><author><style face="normal" font="default" size="100%">Bolle, F</style></author><author><style face="normal" font="default" size="100%">Boxus, L</style></author><author><style face="normal" font="default" size="100%">Joris Van Loco</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Analysis of benzophenone and 4-methylbenzophenone in breakfast cereals using ultrasonic extraction in combination with gas chromatography-tandem mass spectrometry (GC-MS(n)).</style></title><secondary-title><style face="normal" font="default" size="100%">Anal Chim Acta</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Anal Chim Acta</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Benzophenones</style></keyword><keyword><style  face="normal" font="default" size="100%">Edible Grain</style></keyword><keyword><style  face="normal" font="default" size="100%">Gas Chromatography-Mass Spectrometry</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Structure</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultrasonics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2010 Mar 17</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">663</style></volume><pages><style face="normal" font="default" size="100%">55-9</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Benzophenone (BP) and 4-methylbenzophenone (4MBP) are photo-initiators that are generally used to cure ink on carton boards. In this contribution, a fast and reliable method for the determination of BP and 4MBP in breakfast cereals is described. The sample was extracted ultrasonically using a mixture of dichloromethane and acetonitrile (1:1), followed by a clean-up of the extract using solid phase extraction with a silica cartridge. Finally, the extract was analysed by GC-MS(n). Benzophenone-d(10) was used as internal standard. The presented method is validated in terms of linearity, recovery, repeatability and intra-laboratory reproducibility, specificity, limit of detection and limit of quantification. In conclusion, this method is able to detect both BP and 4MBP at very low concentrations (LOD=2microg kg(-1)) in breakfast cereals.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><custom1><style face="normal" font="default" size="100%">https://www.ncbi.nlm.nih.gov/pubmed/20172097?dopt=Abstract</style></custom1></record></records></xml>