| I am updating an old handed-down procedure for arsenic analysis by the hydride generation-atomic absorption method. In this procedure, the acid reagent (10% HCl) for hydride generation has 0.18% hydrazine monohydrate. I assume this is for reducing any As5+ to As3+ for better detection - is this correct? (I'm a microbiologist, not a chemist). If so, is there any other way to achieve that reduction? I would like to remove hydrazine from our procedures due to the fact that it is nasty stuff. |
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