Abstract
A simple, sensitive, selective, accurate and rapid method for the quantitative determination of arsenic in oxides, sulphides, ores and alloys is described. The method is based on the chlorination of arsenic-containing compounds with carbon tetrachloride in a sealed glass tube. Under specific conditions, the chlorination is quantitative and rapid. The volatile products are introduced into the gas chromatographic system after crushing the tube in a special device. The method gives results in a very short time ( ca. 10 min), involves simple manipulations, is especially suitable for automation and the error is of the order of ±0.5%.
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