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Methods Chitin was prepared from fresh shrimp shells and then carboxymethylchitin was prepared by the methods of alkalization and etherification as well as by the purification technique.
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方法 以新鲜虾壳为原料制备几丁质,然后采用碱化和醚化反应以及提纯工艺制备羧甲基几丁质。
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