A continuous extraction method was adopted to analyze the chemical forms of arsenic (as) in soil, and the content change of as with different forms were compared when the additives were added.
采用连续提取法对土壤中砷的化学形态进行分析研究，比较加入不同改良剂时砷的各种形态含量的变化。
It was introduced that extraction technics of soybean protein concentrate by continuous gradient method.
介绍了连续梯度法萃取大豆浓缩蛋白的生产工艺。
Objective to compare impregnation, extraction back to normal, continuous circumfluence, ultrasonic extraction, complex method of extraction of berberine hydrochloride in the Chinese extraction rate.
目的比较浸渍法、一般回流提取法、连续回流法、超声提取法、复合方法提取黄连中盐酸小檗碱的提取率。
Methods The extraction of anthraquinone from rhubarb was performed by liquid-liquid continuous biphasic extraction and this method was compared with 3 general solvent methods.
方法采用自制装置双相水解连续萃取法提取蒽醌衍生物，并和常用的3种溶剂法对比。
Methods:Liquid-liquid continuous biphasic extraction was compared with the one of the traditional method of aqueous extraction and acidic deposition, determining the contents of total flavone by UV.
方法：采用紫外分光光度法测定黄芩苷含量，比较水提法与液-液连续萃取法对黄芩苷提取率的差别。
This invention involves a continuous and high yield separation method for 1, 3-propanediol from fermentation liquor by reaction-extraction coupling.
本发明涉及一种从发酵液中利用反应-萃取耦合法连续、高收率分离提取1,3 -丙二醇的方法。
This invention involves a continuous and high yield separation method for 1, 3-propanediol from fermentation liquor by reaction-extraction coupling.
本发明涉及一种从发酵液中利用反应-萃取耦合法连续、高收率分离提取1,3 -丙二醇的方法。
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