Inductively coupled plasma mass spectrometry and atomic emission spectrometry coupled to high-performance liquid chromatography for speciation and detection of organotin compounds.
Inductively coupled plasma mass spectrometry (ICP/MS) is utilized as a detector for several organotin species separated by high-performance liquid chromatography. Detection limits obtained by ICP/MS are 3 orders of magnitude lower than those obtained with inductively coupled plasma atomic emission spectrometry (ICP/AES) detection under the same chromatographic conditions. Chromatographic detection limits are higher than conventional solution nebulization for the same compound by a factor of 20. Ion-exchange chromatography yields linear response over 3 orders of magnitude, while ion pair chromatography gives a linear response of only 2 orders of magnitude as a result of poor resolution. The relative standard deviation for the injection of 20 ng of tin compounds is less than 10%.
Suyani
H
H
Department of Chemistry, University of Cincinnati, Ohio 45221.
Creed
J
J
Davidson
T
T
Caruso
J
J
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods; D009947:Organotin Compounds / Q000032:analysis*
D009947:Organotin Compounds