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After the sample has dissolved completely, then use sodium hydroxide precipitation making matrix antimony separating from a trace of arsenide, use (1 +4) hydrochloric acid for the determination of the media, and determinate the arsenide using the atomic fluorescence spectrometer, if the separation was good, the results of determination are stable.

After the sample has dissolved completely, use sodium hydroxide precipitation to make matrix antimony separate from trace quantities of arsenic. AS the arsenic is determinated by the atomic fluorescence spectrometer using (1 +4) hydrochloric acid as the media of the determination, the separating effect is good and the results of determination are stable.

Wait until the sample has totally dissolved, then, use Sodium hydroxide precipitation to separate Matrix antimony and a trace of Arsenide by making 1+4 Hydrochloric acid as media of determination. To measure Arsenide, you can use atomic fluorescence spectrometer because it has a good and stable result of separating.

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