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한국환경생물학회 / v.23, no.4, 2005년, pp.374-378 
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( Development of Diffusion - Precipitation Method to Determine AVS Concentrations in Freshwater Sediments ) |
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| 초 록 |
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| A diffusion - precipitation method was developed to determine acid volatile sulfide (AVS) concentrations in freshwater sediments. This method uses silver nitrate as a sulfide trap solution and the concentration of trapped sulfide is determined gravimetrically. The proposed diffusion - precipitation method is more rapid and less expensive than previously developed purge- and - trap methods. Spiked sodium sulfide recoveries using this method $(97~120%)$ were similar with a previously developed diffusion - absorption method $(93.8~115%)$ and about $20%$ greater than a previously developed purge-and-trap method $(74.6~105%)$. Detection limit of this method $(0.1;{mu}mole;S;g^{-l})$ was comparable with that of diffusion-absorption method $(0.06;{mu}mole;S;g^{-l})$ and purge-and-trap method $(0.05~0.5;{mu}mole;S;g^{-l})$. |
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| 키워드 |
| AVS;SEM;metal;sediment;method;diffusion;precipitation;benthic invertebrates; |
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환경생물 / v.23, no.4, 2005년, pp.374-378
한국환경생물학회
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200508824078211)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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