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提出了N2-甲苯浮选,Pd(-2巯-基-β-萘并噻唑(MNT)光度法测定钯的新方法。在硫酸介质中,Pd(与MNT形成组成比为1∶2的红色络合物,该络合物可被N2-甲苯定量浮选,其最大吸收波长位于440 nm处。钯(质量浓度在0.1~100μg/mL范围内符合比尔定律,表观摩尔吸光系数ε440=1.4×105L.mol-1.cm-1,检出限为1.69×10-4mg/L。方法已用于钛合金和天然水中钯的测定。
A new method for the determination of palladium with N2-toluene flotation and Pd (-2-mercapto-β-naphthothiazole (MNT)) spectrophotometry was proposed. In sulfuric acid medium, Pd The complex can be quantitatively flotated by N2-toluene and the maximum absorption wavelength is at 440 nm.Palladium (Beer’s law is obeyed in the range of 0.1-100 μg / mL, the apparent molar absorptivity ε440 = 1.4 × 105L.mol-1.cm-1 with a detection limit of 1.69 × 10-4mg / L. The method has been applied to the determination of palladium in titanium alloy and natural water.