This paper discusses the optimum condition for preparing carboxymethyl starch with high degree of substitution and high viscosity by using the solution isopropanol-water through etherification.
探讨了以异丙醇-水作溶剂，通过一次醚化，制备高取代度、高粘度羧甲基淀粉醚的最佳条件。
The technology of preparing sodium copper chlorophyllin from Banhinia purpurea linn leaves was studied. The optimum technological condition was found.
由羊蹄甲树叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠，研究探讨了优惠提取工艺条件和反应条件。
The technology of preparing sodium copper chlorophyllin from Banhinia purpurea linn leaves was studied. The optimum technological condition was found.
由羊蹄甲树叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠，研究探讨了优惠提取工艺条件和反应条件。
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