To separate and evaluate heavy metal fractions properly, the proposed sequential extraction method was optimized by single extraction procedure.
采用单一萃取程序对建立的重金属形态连续萃取方法的萃取条件进行优化。
This article reports the extraction process with water used to extract, separate and purify saponins from Panax notoginseng leaves. It also explores how to develop the method.
报告中药水提新工艺在三七叶甙的提取、分离、纯化中的应用研究，探讨水提三七叶甙的开发与利用。
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