Formation of dimethyldithioarsinic acid in a simulated landfill leachate in relation to hydrosulfide concentration

被引：4

作者：

An, Jinsung ^{[1
]}

Kim, Ki-Hyun ^{[2
]}

Kong, Mihye ^{[3
]}

Kim, Joo-Ae ^{[4
]}

Shin, Jeoung Hwa ^{[4
]}

Ahn, Yun Gyong ^{[5
]}

Yoon, Hye-On ^{[4
]}

机构：

[1] Seoul Natl Univ, Dept Civil & Environm Engn, 1 Gwanak Ro, Seoul 151742, South Korea

[2] Hanyang Univ, Dept Civil & Environm Engn, 222 Wangsimni Ro, Seoul 133791, South Korea

[3] Yonsei Univ, Dept Earth Syst Sci, 50 Yeonse Ro, Seoul 120749, South Korea

[4] Korea Basic Sci Inst, Seoul Ctr, 6-7 Inchon Ro 22-Gil, Seoul 136075, South Korea

[5] Korea Basic Sci Inst, Western Seoul Ctr, 52 Ewhayeodae Gil, Seoul 120140, South Korea

来源：

ENVIRONMENTAL GEOCHEMISTRY AND HEALTH | 2016年 / 38卷 / 01期

关键词：

Dimethyldithioarsinic acid; Landfill leachate; Hydrosulfide; HPLC-ICPMS; PLASMA-MASS SPECTROMETRY; ARSENIC COMPOUNDS; ICP-MS; CHROMATOGRAPHIC-SEPARATION; THIO-DIMETHYLARSINATE; SPECIATION ANALYSIS; TOXICITY; SAMPLES; RESIDUALS; SULFIDE;

D O I：

10.1007/s10653-015-9714-z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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-.

引用

页码：255 / 263

页数：9

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