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Determination of Butyltin Compounds in Sediments by Means of Hydride Generation/Cold Trapping Gas Chromatography Coupled to Inductively Coupled Plasma Mass Spectrometric Detection
Author(s) -
Segovia García E.,
García Alonso J. I.,
SanzMedel A.
Publication year - 1997
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199705)32:5<542::aid-jms507>3.0.co;2-8
Subject(s) - chemistry , tributyltin , inductively coupled plasma mass spectrometry , chromatography , mass spectrometry , inductively coupled plasma , detection limit , tin , gas chromatography , acetic acid , hydride , analytical chemistry (journal) , plasma , organic chemistry , metal , physics , quantum mechanics
A procedure for the determination of butyltin compounds in sediments is described. The method is based on the generation of volatile mono‐, di‐ and tributyltin (MBT, DBT, TBT) hydrides from a 4% (v/v) acetic acid medium using NaBH 4 . The hydrides formed are then trapped on a Chromosorb W HP SP2100 packed glass column immersed in liquid nitrogen. Sequential desorption of the hydrides is achieved by Nichrome wire heating of the column. The MBT, DBT and TBT hydrides are detected by mass spectrometry using an inductively coupled plasma source. Detection limits of 7, 4 and 4 pg (as Sn) for MBT, DBT and TBT, respectively, were obtained. The method was applied to the determination of organotin compounds (DBT and TBT) in the certified reference material CRM 462 with satisfactory results. © 1997 by John Wiley & Sons, Ltd.