Fractionation of dissolved organic matter on the XAD resin
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- 作者：A. D. Shapiro (1)
E. I. Karavanova (1) - 关键词：dissolved organic matter (DOM) ; soil solution ; soil ; hydrophobic and hydrophilic substances ; fractionation ; XAD resins
- 刊名：Moscow University Soil Science Bulletin
- 出版年：2014
- 出版时间：July 2014
- 年：2014
- 卷：69
- 期：3
- 页码：139-145
- 全文大小：142 KB
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E. I. Karavanova (1)
1. Department of Soil Science, Moscow State University, Moscow, 119991, Russia - ISSN：1934-7928
文摘
Analytical fractionation conditions on the resin XAD-7H of organic substances from gravitational soil moisture influence the proportion and the yield of the extracted fractions. Increasing the column capacity factor k-is accompanied by a decreased yield of hydrophobic fraction and the change in its composition. The sorption column capacity factor of k-= 30 is sufficient for the extraction of all hydrophobic components from a soil solution with a concentration of CDOM of ?5 mg/L.