抄録
Determination of Sulfides in sediments is an important indicator for the extent of water pollution, but usual determination method is insufficient in accuracy because of the lability of sulfides. As the error in determination may occur in pretreatment, sulfides have to be stabilized immediately after samples are taken from sediments. Samples were kept stable for 5 days by using hexaamminezinc solution as the pretreatment solution and storing below 5°. The proposed method was satisfactorily applied to the determination of sulfides in sediments, since the recovery and standard deviation of sulfides (in sediments) was 100.1% and 100±8.28%, respectively.
