Cu、Zn均是生物体内必须的微量营养元素,是一些酶、激素、核素、维生素的重要组成部分,对生物的生长、发育及繁殖有着很大的影响。因此,对生物作用导致的Cu、Zn同位素组成的变化研究在生命科学、环境科学以及地圈与生物圈的相互作用等领域具有重要的潜在意义。生物体对元素的吸 Cu and Zn are essential micronutrients in organism and are important components of some enzymes, hormones, radionuclides and vitamins, which have a great influence on the growth, development and reproduction of organisms. Therefore, the study on the change of Cu and Zn isotope composition caused by biological action has important potential significance in the fields of life science, environmental science, and the interaction between the geosphere and the biosphere. The organism’s absorption of the element