以马铃薯渣为原料，在微波条件下，用稀硫酸溶液萃取、硫酸铝沉淀提取果胶。
Using thin sulphuric acid as extraction reagent by microwave radiation, extracting pectin is precipitated by aluminum sulfate from potato dregs.
该工艺是使用一种新型铜蚀助剂，使紫铜在稀硫酸溶液中迅速被空气氧化而制备工业硫酸铜。
This technology USES a new catalyst to make copper oxidized by air in a dilute sulfuric acid solution and thus to prepare industrial cupric sulfate.
以稀硫酸水溶液作溶剂，采用浸渍法从黄连中提取黄连素。
Berberine hydrochloride was extracted from rhizoma Coptis with dilute sulphuric acid as solvent by the method of immersion.
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