Formation of dimethyldithioarsinic acid in a simulated landfill leachate in relation to hydrosulfide concentration
- Authors
- An, Jinsung; Kim, Ki-Hyun; Kong, Mihye; Kim, Joo-Ae; Shin, Jeoung Hwa; Ahn, Yun Gyong; Yoon, Hye-On
- Issue Date
- Feb-2016
- Publisher
- SPRINGER
- Keywords
- Dimethyldithioarsinic acid; Landfill leachate; Hydrosulfide; HPLC-ICPMS
- Citation
- ENVIRONMENTAL GEOCHEMISTRY AND HEALTH, v.38, no.1, pp.255 - 263
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
- Volume
- 38
- Number
- 1
- Start Page
- 255
- End Page
- 263
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/5128
- DOI
- 10.1007/s10653-015-9714-z
- ISSN
- 0269-4042
- Abstract
- Dimethyldithioarsinic acid (DMDTA(V)), present in such intense sources as municipal landfill leachate, has drawn a great deal of attention due to its abundant occurrence and different aspect of toxicity. The hydrosulfide (HS-) concentration in leachate was studied as a major variable affecting the formation of DMDTA(V). To this end, the HPLC-ICPMS system equipped with the reversed-phase C18 column was used to determine DMDTA(V). Simulated landfill leachates (SLLs) were prepared to cover a mature landfill condition with the addition of sodium sulfate and sulfide at varying concentrations in the presence of dimethylarsinic acid (DMA(V)). The concentration of sodium sulfide added in the SLLs generally exhibited a strong positive correlation with the concentration of DMDTA(V). As such, the formation of DMDTA(V) in the SLLs is demonstrated to be controlled by the interactive relationship between DMA(V) and the HS-.
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