A comparative study of gas chromatography with atomic absorption and atomic emission detection for the speciation analysis of organotin.
Résumé
Two techniques, megabore column gas chromatog. quartz furnace at. absorption spectrometry (AAS) and graphite furnace AAS, were developed for the detn. of pentylated organotin species. The methods were compared with the existing techniques of packed column gas chromatog. (GC) AAS and capillary column GC at. emission spectrometry. Particular attention was given to the design of the interface between a GC column and the detector cell (graphite furnace or quartz furnace) as well as optimization of the operational variables of the interface and detector. The accuracy of the techniques was discussed on the basis of an intermethod comparison anal. of 15 water samples.