The results showed that the purification of black wattletannin by gel column chromatography showed little effect on the complex stabilityconstants. The stability constant of black wattle tannin with Fe~(3+) is larger than that ofEDTA.
研究结果表明，提纯对黑荆树单宁络合稳定常数的影响不大，黑荆树单宁对Fe~(3+)离子的络合稳定常数比EDTA大。
参考来源 - 黑荆树单宁络合性质的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The modification has been made on the black wattle tannin adhesive with sodium sulfite and the MUF concentrate so as to prepare out a tannin adhesive with good water-proof and better glue properties.
采用亚硫酸钠和三聚氰胺- 尿素- 甲醛预缩液对黑荆树单宁胶粘剂进行改性处理，制备具有良好的耐水性能和胶合性能的单宁胶粘剂。
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。
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。
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