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作者发现钛在PAR-H_2O_2-NaBrO_3体系中有一灵敏的极谱催化波,钛浓度在0.2～28ppb范围内与波高呈直线关系,检出限可达0.1ppb。对该体系极谱催化波的性质及机理进行了探讨,应用该体系对铝合金和合金钢中钛进行了测定,结果令人满意。
The authors found that titanium has a sensitive polarographic catalytic wave in the system PAR-H_2O_2-NaBrO_3. The concentration of titanium in the range of 0.2 ~ 28ppb has a linear relationship with the wave height, and the detection limit can reach 0.1ppb. The polarographic catalytic wave properties and mechanism of the system were discussed. The system was applied to the determination of titanium in aluminum alloy and alloy steel with satisfactory results.