分离后的溶液进行浓缩，分步析出氟化钠、 氟化钾和铷铯氟化物。
Then, sodium fluoride, potassium fluoride and (rubidium, cesium) fluoride was separated by concentrating, stepwise precipiting from the solution.
方法：用离子交换树脂分步提取分离。
Methods:To carry on the extraction and separation with the ion exchange resin.
分步水解大豆分离蛋白制备外啡肽的方法，它涉及一种制备外啡肽的方法。
The invention provides a method for preparing exorphins from soybean protein isolate by fractional hydrolysis, which relates to a method for preparing exorphins.
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