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镍中杂质元素的光谱测定,有溶液转盘电极法、样品压块阳、阴极分别激发法和粉末试样阳、阴极分别激发法。我们采用直流电弧阳极激发粉末试样(样品与光谱纯石墨粉1∶1),同时对测定阴极镍材中14个杂质元素的方法作了研究。并对阳极、阴极分别在相同条件下激发粉末试样作了对比,结果在测定下限和准确度方面无差别,只是阴极激发比阳极激发谱线背景稍浅,但杂质元素在电极中的蒸发行为相
Spectrometric determination of impurity elements in nickel, a solution of turntable electrode method, the sample pressure block positive and negative excitation methods and powder samples positive and negative excitation method. We used DC arc anodic excitation powder samples (sample and spectral purity of graphite 1: 1), and determination of the cathode nickel material in the 14 impurity elements were studied. And the anode and cathode were compared under the same excitation powder samples, the results in the determination of the lower limit and the accuracy of no difference, but the cathodic excitation than the anodic excitation line slightly lighter background, but the impurity elements in the electrode evaporation behavior phase