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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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Cite this article:
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%.
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Received: 18 June 1986
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1 潘教麦,化学试剂,(1981) ,№ 4,48。
2 孙慧芳;潘教麦;黄留庆,理化检验,19 (1983) ,№ 1,11。
3 马玉珊,冶金分析,待发表。
4 孙若诚,稀有金属,8 (1984) ,№ 1,56。 |
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