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8329950 
Journal Article 
Determination of tetraethyllead in water by gas chromatography-mass spectrometry 
Yang, L; Wang, M; Li, J; Hu, E 
2010 
1 
Sepu / Chinese Journal of Chromatography
ISSN: 1000-8713
EISSN: 1872-2059 
28 
10 
993-996 
Chinese 
A new method for the determination of tetraethyllead (TEL) in water by gas chromatography-mass spectrometry (GO-MS has been developed. The TEL in water samples (200 mL) was extracted with hexane (50 mL) by adding 20 g NaCl then the extracted solution was concentrated into 1. 0 mL and the internal standard (naphthalene-d8) solution was added to every concentrated solution. The pretreated samples were analyzed by GC-MS. An amount of 1. 0 jxL solution was injected onto an HP-5ms capillary column (30 m xO. 25 mm x 0. 25 μm) and determined by GC-MS in selected ion monitoring (SIM). The selected monitoring ions were m/z 136 236 237, 294 and 295. The m/z 295 was selected as quantitative ion for TEL and m/z 136 for the internal standard. The method had good linearity over the tested concentration range of 0. 02 -0. 40 mg/L (r =0. 999 8 for TEL. The analytical performance characteristics of the proposed procedure were as follows: the detection limit for TEL in 200 mL water sample was 0. 04 μg/L. The average recoveries and the relative standard deviations of TEL were 92. 2% -103% and less than 13. 3% respectively. The method is rapid; convenient and accurate for the determination of water samples. 
Gas chromatography-mass spectrometry (GC-MS); tetraethyllead water