Optimisation of sulphur emission in molecular emission cavity analysis. Effects of variation in cavity position and phosphate addition

T. J. Cardwell, P. J. Marriott, D. J. Knowles

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Temperature profiles are measured for hydrogen flames used for m.e.c.a. and discussed in terms of the emission intensities produced by some sulphur compounds in different regions of the flame. The effect of addition of phosphoric acid or phosphate buffers on sulphates and ammonium thiocyanate is re-examined and the enhancing effect of "residual phosphate" discussed.

Original languageEnglish
Pages (from-to)175-186
Number of pages12
JournalAnalytica Chimica Acta
Issue numberC
Publication statusPublished - 1 Dec 1980
Externally publishedYes

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