金属学报  1986, Vol. 22 Issue (6): 139-141

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导数光度法同时测定镍基合金和钢中的Ce组稀土和Y

孙若诚;马玉珊

中国科学院金属研究所;中国科学院金属研究所

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)

孙若诚;马玉珊. 导数光度法同时测定镍基合金和钢中的Ce组稀土和Y[J]. 金属学报, 1986, 22(6): 139-141.
, . A METHOD FOR SIMULTANEOUS DETERMINATION OF Ce SUB-GROUP AND Y IN Ni-BASE ALLOY OR STEEL[J]. Acta Metall Sin, 1986, 22(6): 139-141.

摘要 参考文献 相关文章 Metrics 全文: PDF(215 KB)   摘要: <正> 我们在探讨Ce组稀土和Y共存的条件下与偶氮氯膦-PN显色剂络合的导数光谱性质和测定,发现一阶导数可将重叠吸收带分开,因而提出导数光度法同时测定Ni基合金和钢中稀土与Y的可能性,经过试验,获得较好的结果。 首先分别配制Ce组稀土(La:Ce.Pr.Nd=2:5:1:2)和Y各为10μg/mL的标准溶液。取不同量注入25mL量瓶中混合。依次加入3NHClO_41mL,2％VC1mL,0.05％偶氮氯膦-PN3mL,于20℃左右放置30min,用水稀释至刻度。用试剂空白作参比。用1cm比色皿在600—800nm范围进行导数测量,按峰-谷法测量峰高。 Ce组稀土和Y共存时,与偶氮氯膦-PN络合物的吸收光谱在675和730nm处相互重叠, 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%. 收稿日期: 1986-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 孙若诚 马玉珊 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I6/139 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。 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed