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

被引：31

作者：

Bianchi, Federica ^{[1
]}

Careri, Maria ^{[1
]}

Maffini, Monica ^{[1
]}

Mangia, Alessandro ^{[1
]}

Mucchino, Claudio ^{[1
]}

机构：

[1] Univ Parma, Dipartimento Chim Gen & Inorgan, I-43100 Parma, Italy

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2006年 / 21卷 / 09期

关键词：

D O I：

10.1039/b603310e

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 mu m fibre. The optimal extraction conditions were found to be the following: T = 30 degrees 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.

引用

页码：970 / 973

页数：4

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