Determination of Butyltin Compounds in Sediments by GC/MS After Their Conversion to Methyl Derivatives

[img]PDF - Authorized users only
Language: English
57Kb
Title:Determination of Butyltin Compounds in Sediments by GC/MS After Their Conversion to Methyl Derivatives
Creators:
Milde, David
Plzák, Zbyněk
Suchánek, Miloslav
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 9, pp. 1403-1412
Uncontrolled Keywords:Tin, Sediments, GC/MS

Abstract

A selective and rapid procedure was developed for the determination of trace amounts of butyltin compounds in sediments by capillary gas chromatography with mass spectrometric detection. Analytes were isolated from the sediment samples by extraction with a methanolic solution of HCl (0.5 mol l<sup>-1</sup>) followed by reextraction into a hexane solution of tropolone (0.1%). The organotin compounds were converted to the nonpolar methyl derivatives by methylation with a Grignard reagent. The recovery was determined for each step of the procedure. This efficient separation method combined with the ion trap based mass detection ensures a high selectivity even for concentrations approaching the detection limit (0.15 pg for Bu<sub>3</sub>SnMe) in real sediments. Chemical ionization using acetonitrile as the reaction gas, exhibiting a similar sensitivity of determination and reducing the background level, can serve as a convenient alternative of detection for sediments heavily contaminated by organics. The method was applied to a set of real samples and validated by analysis of a certified reference material.

Title:Determination of Butyltin Compounds in Sediments by GC/MS After Their Conversion to Methyl Derivatives
Creators:
Milde, David
Plzák, Zbyněk
Suchánek, Miloslav
Uncontrolled Keywords:Tin, Sediments, GC/MS
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:9
Page Range:pp. 1403-1412
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19971403UNSPECIFIED
ID Code:1216
Item Type:Article
Deposited On:06 Feb 2009 17:07
Last Modified:06 Feb 2009 16:07

Citation

Milde, David; Plzák, Zbyněk; Suchánek, Miloslav (1997) Determination of Butyltin Compounds in Sediments by GC/MS After Their Conversion to Methyl Derivatives. Collection of Czechoslovak Chemical Communications, 62 (9). pp. 1403-1412. ISSN 0010-0765

Repository Staff Only: item control page