... Sulphuric acid 硫酸 Sulphuric acid extraction/electrowinning 硫酸浸提-电析法生产铜 The Sulphur Institute (TSI) 国际硫研究所 ...
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Using thin sulphuric acid as extraction reagent by microwave radiation, extracting pectin is precipitated by aluminum sulfate from potato dregs.
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。
Microwave, water bath and ultrasonic extraction were employed to extract the polysaccharide from Pyrus Betulaefolia Bge. leaf and anthrone-sulphuric acid colorimetry was used to determine its content.
分别采用微波、水浴及超声波3种方法提取杜梨叶片多糖，用蒽酮-硫酸比色法测定多糖的含量。
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