A method for the determination of sulphur in oils in the range 0·01 to 1·0 per cent. m/m is described. A simple and inexpensive constant-current coulometer is used. A result can be obtained in 2 minutes by using a 0·5-µl sample. The coefficient of variation is 1·4 per cent. at the 0·2 per cent. m/m of sulphur level.
J. M. Carter, Analyst, 1972, 97, 929 DOI: 10.1039/AN9729700929
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