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Determination of Chlorinated Paraffins by Bromide-Anion Attachment Atmospheric-Pressure Chemical Ionization Mass Spectrometry
Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
Stockholm University, Faculty of Science, Department of Environmental Science and Analytical Chemistry.
Number of Authors: 42018 (English)In: Environmental Science and Technology Letters, E-ISSN 2328-8930, Vol. 5, no 6, p. 348-353Article in journal (Refereed) Published
Abstract [en]

A novel method for the quantitative determination of chlorinated paraffins (CPs) was developed using bromide-anion attachment atmospheric-pressure chemical ionization mass spectrometry (APCI-MS). Bromoform was used to enhance ionization of CPs. Near exclusive formation of stable bromide adduct ions ([M + BR](-)) enabled accurate detection of individual CP congener groups (CnClm) with only a moderate-resolution quadrupole time-of-flight mass spectrometer. Furthermore, the method was free from interference commonly observed with chloride-anion attachment methods (e.g., decomposition ions [M + Cl - HCl](-)) that require deconvolution. Together with a CnClm-response-factor algorithm for quantifying short-chain CPs and a CnClm-pattern-reconstruction algorithm for quantifying medium- and long-chain CPs, method applicability was demonstrated on biota and sediment samples. These data were generated significantly faster and with improved selectivity and sensitivity versus those of conventional measurements by chloride-anion attachment APCI-MS.

Place, publisher, year, edition, pages
2018. Vol. 5, no 6, p. 348-353
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-158305DOI: 10.1021/acs.estlett.8b00216ISI: 000435417000009OAI: oai:DiVA.org:su-158305DiVA, id: diva2:1235907
Available from: 2018-07-30 Created: 2018-07-30 Last updated: 2018-07-30Bibliographically approved

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Yuan, BoBenskin, Jonathan P.
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