溶剂萃取装置
A method for isolating mitochondrial plasmid DNA from etiolated plant seedlings is described in this paper. This method does not need gradient ultra centrifugation and organic solvent extraction. The entire procedure can be finished in short time.
介绍了一种从植物材料中提取线粒体质粒DNA的方法,该方法不需要密度梯度离心和有机溶剂抽提,整个提取过程可在较短时间内完成。
The development work is described in main on an immersion probe Y absorptiometer ( IPA) and a floating probe Y absorptiometer ( FPA) with their application to the solvent extraction for automatic determination of uranium concentrations of organic extracts in the mixer-settler of a certain uranium plant.
本文报道了浸入式和浮动式探头的软γ吸收计的研制,及其在某铀水冶厂萃取过程中的应用。浸入式探头可插入混合澄清器内饱和有机相中测定铀浓度;
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