为提高碱性磷酸酶（ALP）活性测定的灵敏度，对以4-甲基伞形酮磷酸酯（4-MUP）为底物的荧光法进行了研究。
In order to improve the sensitivity of detection of alkaline phosphatase(ALP)activity, a fluorometric method based on 4-methylumbelliferyl phosphate(4-MUP)as substrate was investigated.
根据森林凋落物底物性质的不同，将凋落物分解酶分为纤维素分解酶类、木质素分解酶类、蛋白水解酶类和磷酸酶类。
According to the properties of litter substrate, the enzymes are classified into cellulolytic enzymes, ligninolytic enzymes, proteolytic enzymes and phosphatase.
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