湖泊沉积物中腐殖酸的紫外—可见分光光度法测定  

Determination of Humic Acid in Lake Sediment by UV-VIS Absorbance Spectrophotomter

作　　者：何海军[1] 瞿文川[1] 钱君龙[1] 陆长青[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所,中国科学院南京土壤研究所

出　　处：《分析测试技术与仪器》1996年第1期14-18,共5页Analysis and Testing Technology and Instruments

基　　金：中国科学院专项资助

摘　　要：从湖泊沉积物中提取腐殖酸（主要是胡敏酸），用紫外可见吸收光谱进行了测定，并通过其吸光度对波长求二阶导数对腐殖酸结构进行了分析鉴定。The extraction of humic acid in the lake sediments is described in this paper.By the measurement of the optical densities,the second derivative UV spectrum is obtained by derivation of optical density via wave length.The result is reported and the significance of such determination in atmosphere recording is discusal.

关 键 词：腐殖酸 湖泊沉积物 光度法 胡敏酸 

分 类 号：O636.9[理学—高分子化学] O657.32[理学—化学]