Determination of tri- and tetra-organotin compounds by supercritical fluid chromatography with inductively coupled plasma mass spectrometric detection
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 7 (6) , 971-977
- https://doi.org/10.1039/ja9920700971
Abstract
Supercritical fluid chromatography (SFC) coupled with inductively coupled plasma mass spectrometry (ICP-MS) is used for the separation and detection of tetra- and tri-organotin compound mixtures. The carbon dioxide effluent from the SFC system, using a capillary column (SB-biphenyl-30), does not require a modification in the standard ICP-MS operating conditions. Several parameters such as interface temperature, oven temperature, carbon dioxide pressure programme, mobile phase composition and column length are evaluated in order to optimize the separation conditions of several organotins. Detection limits of 0.26, 0.80, 0.57 and 0.20 pg are found for tetrabutyl tin, tributyltin chloride, triphenyltin chloride and tetraphenyltin, respectively. The relative standard deviation for five 0.05 mm3 injections containing 0.5 ng of Sn ranged from 1.3 to 3.4%.Keywords
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