原子吸收间接法测定污水硫化物

DETERMINATION OF SULFIDE IN SEWAGE INDIRECTLY BY ATOMIC ABSORPTION SPECTROMETRY

论述了用原子吸收间接法测定污水中微量Ｓ２－。根据水溶液中硫化物能与醋酸—醋酸锌溶液形成稳定的硫化锌沉淀，将沉淀充分洗涤、溶解后测定锌离子，从而间接测定溶液中硫化物的含量。

Trace S 2- in sewage was determined indirectly by atomic absorption spectrometry.S 2- was precipitated as stable ZnS in HAC and Zn(AC) 2 polution.The precipitate was washed fully,then dissolved in sulfate acid for measuring.Results show that it is feasible measurement.