Functional groups of the oxidizing degraded products of Black Wattle extract have been studied by using chemical classified tests, IR spectrum and conductivity titration methods.
通过“化学分类试验”与红外、电导滴定法等联用，对荆树皮栲胶不同氧化降解程度产物的官能团进行了研究。
Carboxyl groups content of various pulp suspension were determined by conductivity titration method, detailed investigation was carried out, some points for attention in determination were suggested.
采用电导滴定法测定了不同浆种的羧基含量，并提出了测定过程中需要注意的事项。
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