On the fractionation of humic acids by a fractional precipitation technique |
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| Authors: | Kyoichi Kumada Yukio Kawamura |
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| Affiliation: | Faculty of Agriculture , Nagoya University , Nagoya , Japan |
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| Abstract: | When humic acid is investigated from the standpoint of high polymer chemistry, its fractionation is one of the most important and interesting problems. In this paper, some experimental results will be reported on the fractionation of humic acid by the fractional precipitation technique proposed by SCHULZ (I), which had been successfully applied on a soil humic acid by KYUMA (2). |
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