Determination of elemental impurities in phosphoric acid by INAA employing a novel method of phosphate precipitation

被引：5

作者：

Kamenik, Jan ^{[1
]}

Amsil, Hamid ^{[2
]}

Kucera, Jan ^{[1
]}

机构：

[1] ASCR, Inst Nucl Phys, Husinec Rez 13025068, Czech Republic

[2] Ctr Natl Energie Sci & Tech Nucl CNESTEN, Rabat 10001, Morocco

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 304卷 / 01期

关键词：

Instrumental neutron activation analysis; Phosphoric acid; Elemental impurities; Isothermal distillation; NEUTRON-ACTIVATION ANALYSIS; URANIUM;

D O I：

10.1007/s10967-014-3499-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Banned irradiation of liquid acids in many nuclear reactors requires a transformation of these compounds into a solid substance to be able to perform the determination of impurities using instrumental neutron activation analysis. For this purpose, a novel, simple, and contamination-free procedure for the transformation of phosphoric acid into ammonium phosphate has been developed, which is based on isothermal distillation of ammonia vapours. Favourably low detection limits for more than 35 elements have been achieved and the accuracy of the results has been established by analysis of NIST SRM 1515 Apple Leaves.

引用

页码：157 / 162

页数：6

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