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最近做一个淀粉酶的方法学考察,含量测定用滴定法,但是不知道如何做方法学考察?象专属性,加样回收之类的根本没办法做?求经验丰富的大师指点指点.或者有相关的文献麻烦发我一下,学习学习,非常感谢! Diastase ジアスターゼ Diastase is an enzyme drug mainly prepared from malt. it has amylolytic activity. It contains not less than 440 starch saccharifying ac-tivity units per g. It is usually diluted with suitable diluents. Description Diastase occurs as a light yellow to light brown powder. It is hygroscopic. Purity Rancidity—Diastase has no unpleasant or rancid odor, and has no unpleasant or rancid taste. Loss on drying<2.41> Not more than 4.0%(1 g, 105℃,5hours) Assay (i) Substrate solution—Use potato starch TS for amylolytic activity test. (ii) Sample solution—Weigh accurately about 0.1 g of Diastase, and dissolve in water to make exactly 100 mL. (iii) Procedure—Proceed as directed in (i) Measurement of starch saccharifying activity of (1) Assay for starch diges-tive activity under Digestion Test<4.03>. Containers and storage Containers—Tight containers. Storage—Not exceeding 30℃.
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