摘要
在考虑配位体对光的吸收的情况下,通过倍数法,得到了混合体系中络合物真实摩尔吸光系数的计算公式。
In the determination of molar absorptivity (ε) of colored complexes by the Job's method, a parallel experiment by supposing C^0′=nC^0 in the reaction equilibrium M+nR=MR_n is made simultaneously, that is, taking a multiple n for values of concentration of C_M, C_R and C^0. The derivation shows that the ε can be calculated more rationally by the following formula: ε=(A—A′k^(1/(n+1)))/(C_M—C′_M k^(1/(n+1))). Where A and A′are the absorbances taken from the photometer, C_M and C′_M are known values (C′_M = nC_M ), and the values of k can he calculated by another formula with known values also.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2003年第10期569-570,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
倍数法
测定
络合物
摩尔吸光系数
吸光度
Absorbance
Molar absorptivity
Job's method
Modification by multiple method
