Development of a fast capillary electrophoresis-time-of-flight mass spectrometry method for the speciation of organotin compounds under separation conditions of high electrical field strengths

Malik, Ashok Kumar and Grundmann, Marco and Matysik, Frank-Michael (2013) Development of a fast capillary electrophoresis-time-of-flight mass spectrometry method for the speciation of organotin compounds under separation conditions of high electrical field strengths. TALANTA, 116. pp. 559-562. ISSN 0039-9140, 1873-3573

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Abstract

A novel approach has been developed for the separation of organotin species with capillary electrophoresis hyphenated to time-of-flight mass spectrometry. It has been applied to the development of a method for the determination and speciation of organotin compounds namely, dibutyltin (DBT), tributyltin (TBT), diphenyltin (DPT) and triphenyltin (TPT) in water samples. Experiments were made with a special laboratory constructed CE instrument A non-aqueous buffer system compatible with TOF-MS has been developed using ammonium acetate-acetic acid (50 mM and 1 M) in acetonitrile: methanol (80:20). The total analysis time is less than 3 min for these compounds under the conditions developed. The method has been applied successfully to the determination of these compounds in river water samples. Detection limits of the CE-TOF-MS method were between 1 and 8 x 10(-7) M, and between 2 and 11 x 10(-9) M (0.46 to 3.2 mu g L-1) when used in conjunction with solid phase extraction. The short analysis time as well as good sensitivity and selectivity make it a useful approach for the fast screening of organotin compounds. (C) 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: TIN; Capillary electrophoresis; Time-of-flight mass spectrometry; Dibutyltin; Tributyltin; Diphenyltin; Triphenyltin; Speciation analysis; Water samples
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Instrumentelle Analytik (Prof. Frank-Michael Matysik)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 26 Mar 2020 10:08
Last Modified: 26 Mar 2020 10:08
URI: https://pred.uni-regensburg.de/id/eprint/15670

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