Separation of the fructose esters by water-organic extract with salt-effect was studied.
研究了水—有机溶剂盐效应萃取分离除去果糖的工艺。
2
Beside filtering interference signals and extract effective signals, it is a difficult problem to study the separation of multi-signal of sound wave and vibration.
在实际测量过程中，除了过滤干扰信号，提取有效信号外，多振动源信号分离是本文研究的一个难点。
3
Besed on the extract with 80% acidities alcohol, separation by silica gel, precipitation by ether, oxysophocarpine was obtained from Sophora flavescens.