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本文提出了测定钼的新极谱体系，最佳底液条件为pH2．1的盐酸－2．37×10－6mol／L桑色素－0．172mol／L氯酸钠。极谱波峰电位为－0．43V（vs．SCE），钼（Ⅵ）浓度在1．04×10－9～4．59×10－8mol／L范围内与波高有线性关系，检出限3．67×10－10mol／L。方法简便，快速、准确，并且直接应用于钨精矿中微量钼的测定。
In this paper, a new polarographic system for the determination of molybdenum is proposed. The optimal conditions for the determination of molybdenum are as follows: hydrochloric acid at pH2.1 -2.37 × 10-6mol / L morin-0.172mol / L sodium chlorate. The polarographic peak potential was -0.43 V (vs.SCE) and the molybdenum (VI) concentration was linear with the wave height in the range of 1.04 × 10-9 ~ 4.59 × 10-8 mol / L with the detection limit of 3 .67 × 10-10mol / L. The method is simple, rapid and accurate, and it can be directly applied to the determination of trace molybdenum in tungsten concentrates.