AN X-RAY DIFFRACTION STUDY OF HUMIC ACIDS
AN X-RAY DIFFRACTION STUDY OF HUMIC ACIDS
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腐植酸的 X 射线衍射研究
DOI：
10.1080/00380768.1984.10434664
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发表时间：
1984
影响因子：
2
通讯作者：
M. Shiraishi
中科院分区：
文献类型：
--
作者：
Y. Matsui;K. Kumada;M. Shiraishi
对A型、RP型和P型腐植酸及相关物质进行了X射线衍射分析。土壤腐植酸总体上表现为y-和(002)-带。A型和RP型腐植酸分别呈现(002)和y-带。P型腐植酸呈现y-和(002)-带，前者占主导地位，后者占主导地位。用傅里叶变换方法进一步分析了A型腐植酸的(002)带。平行堆叠的层数平均为9层。最常见的堆积单元由2层和3层组成。每堆的平均最大层数为2.66。每种腐植酸的堆积重量百分比达32%。以从黑土中提取的SOFICY-1腐植酸(A型)为例，用透射电子显微镜证实了层堆积的存在。在此基础上，对腐植酸的结构进行了讨论。
A, Rp and P type humic acids and certain related materials were subjected to X-ray diffraction analysis. In general, the soil humic acids exhibited y- and (002)-bands. A and Rp type humic acids showed (002)- and y-bands, respectively. P type humic acid exhibited y- and (002)-bands, with the former predominating with regard to the latter. The (002)-band of A type humic acids was further analyzed using the Fourier transformation method. The number of layers stacked parallel to each other was 9 on the average. The most commonly found stacking units consisted of 2 and 3 layers. The average maximum number of layers per stack was 2.66. The weight percent of stack per humic acid was up to 32. In the case of Sochicken-1 humic acid (A type) extracted from Kuroboku soil, the presence of layer stacking was confirmed by transmission electron microscopy. Based on these results, the structure of humic acids is discussed.