In chapter 4 the adsorption behavior of the in situ immobilized black wattle bark to Cr~(6+) was studied, and its adsorption mechanism was presumed.
第四章进一步研究了原位固化黑荆树皮对Cr~(6+)的吸附性能，并推测了其吸附机理。
参考来源 - 黑荆树皮的改性及其吸附性能的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The key technique of the new process of tannin extraction from black wattle bark is to divide the extraction into two steps.
采用分段浸取新工艺是黑荆树皮单宁提取的关键技术。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
通过对黑荆树皮单宁进行醇沉纯化和溶剂萃取分级，可得到分子量分布范围不同的单宁级分。
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