沉积物
有机质
环境化学
环境科学
溶解有机碳
估计
化学
地质学
地貌学
工程类
有机化学
系统工程
作者
Shamshad A. Khan,Wu Yaoguo,Zhang Xiaoyan,Liu Jingtao,Sun Jichao,Hu SiHai
出处
期刊:International journal of environmental pollution and remediation
[Avestia Publishing]
日期:2014-01-01
被引量:1
标识
DOI:10.11159/ijepr.2014.003
摘要
The objective of this research was to develop a spectrophotometric technique for estimation of concentration of dissolved organic matter (DOM) from sediment. The results showed that the absorbance 272nm is good surrogate to the concentration of the DOM. In addition, absorption of DOM confirmed to be independent of pH values ranging from 3.0 to 11. Compare to the chemical oxygen demand method and TOC–analyzer, the develop correlation technique using the UV– visible absorption is very straightforward, needs much smaller sample volume, and shows a good reproducibility. The absorbance (272nm) increased with increasing the concentrations of DOM with very high correlation coefficient (R2= 0.98). So it is suggested that this technique should be used as a surrogate for estimation of concentration of DOM from sediment.
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