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The traditional way of analysing thiosulphate/sulphite mixtures is to mask the sulphite with formaldehyde, and titrate the thiosulphite with iodine in the usual way. The titration is then repeated...
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I've got a TLC method which checks for impurities in a particular cyanine dye. This dye is symmetrical, which should reduce the number of possible impurities! It is reasonably soluble in...
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