Nie Jinan\ Gao Dayun(Department of Chemistry,Nanchang University,Nanchang,330047)Zhang Xinquan\ Yang Quansheng(Jiangxi Provincial Institute of Analysis & Test,Nanchang,330029)
Abstract：The blue species of molybdosilicic acid is absorbed by Sephadex G-25 gel from the solution.The Gel-phase background is eliminated by dualwavelength equal absorption point method (λ 1=804 nm,λ 2=420 nm).The sensitivity of solid-phase is seven times as hi
1997, Vol. 21 