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    In situ analysis of corrosion inhibitors using a portable mass spectrometer with paper spray ionization

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    Type
    Article
    Authors
    Jjunju, Fred Paul Mark
    Li, Anyin
    Badu-Tawiah, Abraham K.
    Wei, Pu
    Li, Linfan
    Ouyang, Zheng
    Roqan, Iman S. cc
    Cooks, Robert Graham
    KAUST Department
    Electrical Engineering Program
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Semiconductor and Material Spectroscopy (SMS) Laboratory
    Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/562507
    
    Metadata
    Show full item record
    Abstract
    Paper spray (PS) ambient ionization is implemented using a portable mass spectrometer and applied to the detection of alkyl quaternary ammonium salts in a complex oil matrix. These salts are commonly used as active components in the formulation of corrosion inhibitors. They were identified in oil and confirmed by their fragmentation patterns recorded using tandem mass spectrometry (MS/MS). The cations of alkyl and benzyl-substituted quaternary ammonium salts showed characteristic neutral losses of CnH2n (n carbon number of the longest chain) and C7H8, respectively. Individual quaternary ammonium compounds were detected at low concentrations (<1 ng μL-1) and over a dynamic range of ∼5 pg μL-1 to 500 pg μL-1 (ppb). Direct detection of these compounds in complex oil samples without prior sample preparation or pre-concentration was also demonstrated using a home-built miniature mass spectrometer at levels below 1 ng μL-1.© 2013 The Royal Society of Chemistry.
    Citation
    Jjunju, F. P. M., Li, A., Badu-Tawiah, A., Wei, P., Li, L., Ouyang, Z., … Cooks, R. G. (2013). In situ analysis of corrosion inhibitors using a portable mass spectrometer with paper spray ionization. The Analyst, 138(13), 3740. doi:10.1039/c3an00249g
    Sponsors
    We acknowledge financial support from the Separations and Analysis Program, Office of Basic Energy Sciences, US Department of Energy, DE-FG02-06ER15807. Financial support was also provided by the US National Science Foundation (CHE 0848650). Fred. P. M. Jjunju thanks King Abdullah University of Science and Technology (KAUST) Thuwal Saudi Arabia for a fellowship.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    The Analyst
    DOI
    10.1039/c3an00249g
    PubMed ID
    23675580
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3an00249g
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Material Science and Engineering Program

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