COMPARISON OF AMINO-ACID COMPOSITIONS AND E(4)/E(6) RATIOS OF SOIL AND WATER HUMIC SUBSTANCES FRACTIONS OBTAINED BY POLYACRYLAMIDE-GEL ELECTROPHORESIS

被引：7

作者：

TRUBETSKOJ, OA

TRUBETSKAYA, OE

MARKOVA, LF

MURANOVA, TA

机构：

[1] Institute of Soil Science and Photosynthesis, Russian Academy of Sciences, 142292 Pushchino, Moscow Region

[2] Branch of the Shemyakin Institute of Bioorganic Chemistry, Russian Academy of Sciences, 142292 Pushchino, Moscow Region

来源：

ENVIRONMENT INTERNATIONAL | 1994年 / 20卷 / 03期

关键词：

D O I：

10.1016/0160-4120(94)90124-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Groundwater fulvic acids (GWFA), river fulvic acids (RFA), soil humic acids (SHA), and soil fulvic acids (SFA) were fractionated by electrophoresis in 10% polyacrylamide gel in the presence of denaturing agents. The humic substances (HS) from each source separated into several discrete fractions: SHA divided into five fractions; SFA and GWFA divided into four fractions; and RFA divided into three fractions. Identical fractions had similar electrophoretic mobilities independent of the HS sources. Amino-acid compositions and E4/E6 ratios of the HS and their fractions were studied. While HS and their fractions from different sources differed greatly in E4/E6 ratios, they had remarkably similar amino-acid compositions; differences in neutral and basic amino-acid compositions were not significant.

引用

页码：387 / 390

页数：4

共 11 条

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