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基于在70℃盐酸介质中,Ru(Ⅲ)对IO_4~-氧化孔雀绿这一反应的强烈催化作用及孔雀绿在pH_3.8的醋酸盐缓冲溶液中于-0.45V_(vs).SCE产生—灵敏的示波极谱波,用抗坏血酸中止反应,拟定了一个检出限为0.27ng/L Ru的催化反应-示波极谱分析新方法,该法已成功地用于氯化渣中痕量钌的分析。
Based on the strong catalytic effect of Ru (Ⅲ) on the reaction of IO_4 ~ -oxidized malachite green in 70 ℃ hydrochloric acid medium and the malachite green at -0.45V_ (vs) .SCE in pH_3.8 acetate buffer solution - A sensitive oscillopolarographic wave with ascorbic acid quenched the reaction and developed a new catalytic reaction-oscillopolarographic analysis with a detection limit of 0.27 ng / L Ru, which has been successfully applied to the trace of chloride residue Analysis of ruthenium.