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A Simple Extraction-spectrophotometric Method for the Estimation of Dissolved Humic Substances in Water. Part 1: Procedures |
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| Authors: | G Hanschmann |
| Abstract: | Humic substances (HS) can be extracted from water into chloroform in one step by means of cetyl-pyridinium chloride and sodium chloride. The absorbance (at 450 nm) of the extract is proportional to the HS content. Two procedures are presented for HS concentrations of 2 … 20 mg/l and 20 … 200 mg/l water, respectively. |
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