title: Photoacid generator formation for the selective enrichment of perfluoroalkyl sulfonates and their direct analysis by MALDI-TOF-MS.
abstract: Triphenylsulfonium chloride (TPSC) was employed as a bifunctional agent for the selective enrichment of perfluoroalkyl sulfonates by triphenylsulfonium perfluorosulfonic acid (TPA, a photoacid generator) precipitation, and for the direct detection of perfluorosulfonic acid by MALDI-TOF-MS, using the triphensylsulfonium group of TPA as a matrix.
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, 18 Shuangqing Road, Haidian district, Beijing, 100085, People's Republic of China.
authors.forename: Dong
authors.initials: D
authors.lastname: Cao
authors.forename: Ming
authors.initials: M
authors.lastname: Hu
authors.forename: Chunguang
authors.initials: C
authors.lastname: Han
authors.forename: Jiyao
authors.initials: J
authors.lastname: Yu
authors.forename: Lin
authors.initials: L
authors.lastname: Cui
authors.forename: Yongxue
authors.initials: Y
authors.lastname: Liu
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Cai
authors.forename: Hailin
authors.initials: H
authors.lastname: Wang
authors.forename: Yuehui
authors.initials: Y
authors.lastname: Kang
mesh_terms: D000476:Alkanesulfonates / Q000737:chemistry*; D010782:Photolysis; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D013452:Sulfonium Compounds / Q000737:chemistry
chemical_list: D000476:Alkanesulfonates; D013452:Sulfonium Compounds; C013319:triphenylsulfonium ion