Selection of spectral windows for plasma atomic-emission spectrometry.
A program has been developed to evaluate the number of spectral windows required to perform elemental analysis by ICP-AES, given a certain spectral window width. The data indicate that photodiode array systems (sequential slew scan) with as few as 7 or 8 acquisitions (windows) might be viable. With smaller windows, approaching in size those used by direct-reading spectrometers, it appears that conventionally designed spectrometers with photomultiplier tube detectors could use between 29 and 37 windows to determine 59 elements. This indicates that a general purpose direct-reading spectrometer may be feasible.
Webb
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Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, P.Q. H3A 2K6, Canada.
Salin
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