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Issue 9, 2006
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Optimization of the solid phase microextraction procedure for the ultra-trace determination of organotin compounds by gas chromatography-inductively coupled plasma-mass spectrometry

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Abstract

A chemometric approach based on experimental design and desirability functions was used to develop and validate a SPME-GC-ICP-MS method for the determination of the organotin compounds dimethyltin, tributyltin and dibuthyltin. Three different SPME coatings were evaluated, obtaining the best results by using the divinylbenzene/carboxen/polydimethylsiloxane 2 cm 50/30 μm fibre. The optimal extraction conditions were found to be the following: T = 30 °C, t = 40 min and pH = 4. Method validation was performed by determining the most relevant quality parameters such as detection limit, quantitation limit, repeatability and intermediate precision. LOD values in the 0.2–8 ng L−1 were obtained.

Graphical abstract: Optimization of the solid phase microextraction procedure for the ultra-trace determination of organotin compounds by gas chromatography-inductively coupled plasma-mass spectrometry

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Article information


Submitted
06 Mar 2006
Accepted
28 Jul 2006
First published
07 Aug 2006

J. Anal. At. Spectrom., 2006,21, 970-973
Article type
Technical Note

Optimization of the solid phase microextraction procedure for the ultra-trace determination of organotin compounds by gas chromatography-inductively coupled plasma-mass spectrometry

F. Bianchi, M. Careri, M. Maffini, A. Mangia and C. Mucchino, J. Anal. At. Spectrom., 2006, 21, 970
DOI: 10.1039/B603310E

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