Determinations and Distributions of Acid Volatile Sulfide (AVS) in the Sediments of Poyang Lake, China

Abstract

Poyang Lake is the largest freshwater lake in China. A series of semimetal samples in summer and winter seasons located in cites of Ruihong and Hukou in Poyang Lake were sampled, respectively. According to the experimental procedure, the acid volatile sulfides (AVS) in the series of residues were selective extracting after the elemental sulphur (ES) extracted from the sediment samples, and then titrated using iodine titration. Based on the series data of AVS got from the above mentioned cites, the distribution behaviors of AVS with depth at different seasons in the two sites were demonstrated as well.