[1]施和平,吴瑞凤,张静茹,等.包头尾矿库区不同分子量和种类腐殖酸的提取及表征[J].江苏农业科学,2016,44(10):451-454.
Shi Heping,et al.Extraction and characterization of humic acid with different species and molecular weight in tailing area of Baotou[J].Jiangsu Agricultural Sciences,2016,44(10):451-454.
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包头尾矿库区不同分子量和种类腐殖酸的提取及表征(PDF)
Shi Heping,et al.Extraction and characterization of humic acid with different species and molecular weight in tailing area of Baotou[J].Jiangsu Agricultural Sciences,2016,44(10):451-454.
《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]
- 卷:
- 第44卷
- 期数:
- 2016年10期
- 页码:
- 451-454
- 栏目:
- 资源与环境
- 出版日期:
- 2016-10-25
文章信息/Info
- Title:
- Extraction and characterization of humic acid with different species and molecular weight in tailing area of Baotou
- 作者:
- 施和平1; 吴瑞凤2; 张静茹2; 石磊3; 李金英3
- 1.内蒙古农业大学理学院，内蒙古呼和浩特，010018； 2.内蒙古工业大学化工学院，内蒙古呼和浩特，010051；3.华润新能源控股有限公司，广东深圳，518000
- Author(s):
- Shi Heping; et al
- Keywords:
- -
- 分类号:
- X132；O657
- DOI:
- -
- 文献标志码:
- A
- 摘要:
- 采用焦磷酸钠萃取法提取腐殖酸，并分离得到黄腐酸、棕腐酸和黑腐酸，通过膜分离技术分离腐殖酸得到6种不同分子量的腐殖酸。对样品用元素分析、红外光谱、紫外分析及荧光光谱法进行了表征。结果表明，各种腐殖酸的化学组成有相似之处，但在结构上有明显不同：(1)元素分析发现不同腐殖酸之间H/C、C/N原子比具有明显的差异，不同分子量的腐殖酸，分子量越大芳香度越高；而3种不同类型的腐殖酸中，芳香度为黑腐酸>棕腐酸>黄腐酸。不同分子量腐殖酸中分子量越小的腐殖化程度越高，而不同类型的腐殖酸中黄腐酸腐殖化程度最高。(2)荧光谱图表明不同腐殖酸中分子量越小荧光强度越强，黑腐酸、棕腐酸明显强于黄腐酸；说明不同腐殖酸的结构存在差异。(3)紫外分析显示，各种腐殖酸均含有芳香官能团，用E4/E6解释腐殖酸的芳香缩合程度发现与元素分析所得结论一致。(4)红外光谱也得出不同腐殖酸结构和特性存在相似性和差异性，均含有羧基，除黄腐酸与分子量小于10 000的腐殖酸外均含有芳环或酚类。
- Abstract:
- -
参考文献/References:
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备注/Memo
- 备注/Memo:
-
收稿日期：2015-08-18
基金项目：国家自然科学基金(编号：21167010)。
作者简介：施和平(1970—)，男，山西朔州人，博士，副教授，研究方向为环境化学。E-mail：hpshi2002@163.com。
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