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Acta Metall Sin  1986, Vol. 22 Issue (6): 139-141    DOI:
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A METHOD FOR SIMULTANEOUS DETERMINATION OF Ce SUB-GROUP AND Y IN Ni-BASE ALLOY OR STEEL
by SUN Ruocheng; MA Yushan (Institute of Metal Research; Academia Siniea; Shenyang)
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by SUN Ruocheng; MA Yushan (Institute of Metal Research; Academia Siniea; Shenyang). A METHOD FOR SIMULTANEOUS DETERMINATION OF Ce SUB-GROUP AND Y IN Ni-BASE ALLOY OR STEEL. Acta Metall Sin, 1986, 22(6): 139-141.

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Abstract  A new method for the simultaneous determination of the Ce subgroup and Y in Ni-base alloy or steel was developed. The trouble to analysis from the mutual overlap on the spectra resulted by the complexes of Ce sub-group and Y with chlorophosphonazo-P-NO_2 in HClO_4 has been relieved by complete separation using first derivative spectrophotometry. The interference of foreign ions can be eliminated by masking with VC, Zn-EDTA and NH_4F. The method has been applied to Ni-base alloy or steel containing 0.05—0.4% Ce sub-group and Y with a relative error ±8%.
Received:  18 June 1986     
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1 潘教麦,化学试剂,(1981) ,№ 4,48。
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4 孙若诚,稀有金属,8 (1984) ,№ 1,56。
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