报道了利用722型分光光度计,采用等物质的量系列法,测定3种氨基酸铜螯合物一系列变化组合的溶液的吸光度A。以溶液的吸光度A与铜的物质的量分数f作出连续变化曲线,可求出3种氨基酸(甘氨酸、赖氨酸、蛋氨酸)分别与铜离子螯合的组成配比(n≈2)和计算出3种氨基酸铜螯合物的稳定常数。 Reported the use of 722 spectrophotometer, the amount of such substances using the series of methods, determination of three amino acid copper chelates a series of changes in the combination of absorbance A. The curves of the absorbance A of the solution and the amount fraction of copper f are continuously changed, and the composition ratio (n ≈ 2) of the three kinds of amino acids (glycine, lysine and methionine) chelated with copper ions can be calculated and calculated Three kinds of amino acid copper chelate stability constants.