搜索结果: 1-3 共查到“化学分离工程 HPLC”相关记录3条 . 查询时间(0.078 秒)
![](http://www.firstlight.cn/upload/imgfile/20186/7/201867145218935.png)
亚临界水,又称高压热水、超热水或热液态水,是指在一定压力下(一般在5~20MPa),温度处于100℃以上,临界温度374℃以下的高温水,且一直保持液体状态。通常条件下,水是极性化合物,在5MPa压力下,随温度升高(50~300℃),其介电常数由70减小至1,也就是说其性质由强极性渐变为非极性,可将溶质按极性由高到低萃取出来。通过控制亚临界水的温度和压力,使水的极性在较大范围内变化,从而实现天然产物...
Interfacial Properties of Ethyl Cellulose/Cellulose Acetate Blends by HPLC
ethyl cellulose cellulose acetate interfacial property
2009/11/16
The high performance liquid chromatography method (HPLC) with ethyl cellulose/cellulose acetate (EC/CA) blends and EC as column packing material, and small molecular weight compound as probe molecules...
In reversed-phase high performance liquid chromatography (RP-HPLC), the mobile phase condition for separating eight isoflavones (daidzin, glycitin, genistin, 6′-o-acetyl daidzin, 6′-o-malonyl genisti...