摘要
采用元素分析、1HNMR和FTIR研究了黄泥土中水溶性有机质组成及结构特征,并与富里酸、胡敏酸进行比较。结果表明:胡敏酸含有大量的芳香族不饱和物质,烷基链烃多,支链长;富里酸以含有大量的羧基为主要结构特征;水溶性有机质主要由碳水化合物组成,含有大量的羟基,芳香族不饱和物质少。
Dissolved organic matter (DOM) from the Huangnitu was studied by means of elemental compositon analysis, FTIR and 1HNMR and compared with fulvic and humic acids. Results show that DOM, fulvic and humic acids differ widely. Humic acid has a high content of aromatic unsaturated substances and alkyl hydrocarbons with long branched chains; fuvic acids is characterized by large amount of carboxylic functional group, and DOM consists primarily of carbohydrate, containing a lot of hydroxyl and little of aromatic unsaturated substances .
出处
《土壤》
CAS
CSCD
北大核心
2004年第1期46-50,共5页
Soils
基金
国家自然科学基金(20177009)
关键词
水溶性有机质
结构特征
富里酸
胡敏酸
Dissolved organic matter (DOM), Structural characteristics
Fulvic acids (FA), Humic acids (HA)
