A new system of flow injection on-line preconcentration with VS- I anion exchange fiber was established for simultaneous spectrophotometric determination of trace Au, Pd and Ag in geological samples. A FIA simultaneous determinaion method based on elution curves was brought up. The ANN calculation was used to deal with the nonlinear data, and the application and influence factors of B-P algorithm were investigated. The study on three kinds of multivariate calibration methods showed that the B-P algorithm has a strong correction capability for nonlinear data.
Chinese Journal of Analytical Chemistry
Artificial neural network, multicomponent, spectrophotometry, flow injection, noble metal