旋转蒸发仪
- 网络rotary evaporator;Rotary Evaporators;Rotavapor
旋转蒸发仪-
先用高压静电场对黑香豆进行预处理，然后用95%的乙醇将预处理的黑香豆浸泡120h，过滤，用旋转蒸发仪浓缩，用无水硫酸钠干燥后进行GC/MS分析。
Tonka beans were treated in high-voltage static field , extracted with 95 % ethanol for 120 hours ,( filtrated ,) concentrated , dried by anhydrous sodium sulphate , and then analyzed by GC / MS.
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萃取液经硅胶小柱层析净化，旋转蒸发仪浓缩，最后用高效液相色谱-荧光串联紫外检测器分析，并进行加标回收测定。
After the purification process by a silica gel column , the solution was passed to high performance liquid chromatography - fluorescent detector-ultraviolet detector for analysis . Standard addition recovery rate was determined with quartz sand as substrate .