spectrum, mass meaning in Chinese

质谱

The distribution and accumulation of three kinds of heavy metals including lead , copper and mercury in tissues and cells of several organs , and their effects on activity of digestive enzymes and alkaline phosphatase of macrobrachium nipponense were studied with light microscopy , transmission electron microscopy , cytochemical method , atom absorption spectrum , mass spectrum analysis and enzyme analytical method
本文应用组织学、组织化学、透射电镜、原子吸收光谱分析和酶学分析等方法，研究了铅、铜、汞等三种重金属在日本沼虾各主要器官细胞内的分布和积累以及对日本沼虾消化酶和碱性磷酸酶活性的影响。