题目内容
酮及芳香醛不与斐林试剂反应。
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在碱的催化下，醛、脂肪族甲基酮和8个碳原子以上的环酮可与氢氰酸发生亲核加成反应
在碱的催化下，醛、甲基酮和8个碳原子以下的环酮可与亚硫酸氢钠发生亲核加成反应
A widely recognized heuristic for categorizing downstream processing operations divides them into four groups which are applied in order to bring a product from its natural state as a component of a tissue, cell or fermentation broth through a progressive improvements in purity and concentration.
Removal of insolubles in the first step and involves the capture of the product as a solute in a particulate-free liquid, for example the separation of cells, cell debris or other particulate matter from fermentation broth containing an antibiotic.
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