title: [Study on determination of composition of complex by multiwavelength R factor method].
abstract: The pure spectrum of the complex is obtained by R factor method to eliminate the absorbance of equilibrium concentration of residual reagent. The reagent concentration is determined by multiple linear regression method. As initial concentrations of metal and reagent are changed, and the stable constant is not changed, complex composition and its constant are acquired by means of trial method, in which the input parameters, m and n, are selected. Then the K value is calculated and the minimum value of the total derivation in K is found. By this method, the composition of complex in systems such as Pb-XO, Al-CAS and Zn-PAR are all to be 1:2.
authors.affiliation: Department of Applied Chemistry, Guilin Institute of Technology, 541004 Guilin.
authors.forename: S
authors.initials: S
authors.lastname: Liu
authors.forename: J
authors.initials: J
authors.lastname: Guo
authors.forename: S
authors.initials: S
authors.lastname: Gong