两种方法制备黄藤素的比较研究-毕业论文网 关键词：盐析法；D101大孔吸附树脂；黄藤素；巴马汀 [gap=678]Keywords：Salt out method; Macroporous resin; Fibrauretinum; Palmatine
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Work theory, measure method of ultrasonic waves flowmeter and its application in salt production is introduced, some questions in selection and application of the flowmeter are pointed out.
介绍了超声波流量计的工作原理，测量方法及其在制盐生产中的应用，并提出了选用时应注意的一些问题。
The amount of salting- out can be reduced with the optimized method of salt addition.
采用两次盐析法可以降低盐析剂的总用量；
Methods DNAs were extracted from the white blood cells of people in Hainan by salt-out method. Polymerase chain reaction and restriction endonuclease was used to determine the 4533G/A polymorphism.
方法用盐提取法提取人群中白细胞的DNA，以聚合酶链反应、限制性内切核酸酶检测-4533G/A多态性。
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