The determination of niobium in metals and alloys
ANALYSTANALYST Pub Date: DOI: 10.1039/AN9679200043
Abstract
A method is described for the determination of niobium in metals and alloys. Niobium is separated from the matrix elements by adsorption on to Dowex 1 anion-exchange resin from a solution of hydrofluoric acid and nitric acid. The niobium is eluted in a mixture of hydrofluoric and nitric acids and determined by the spectrophotometric measurement of the blue complex formed between niobium (V) and bromopyrogallol red.
The method has been applied to the determination of niobium in iron, steel, tantalum and zirconium.
Recommended Literature
- [1] Excess electrons in lithium–ethylamine solutions—density, electrical conductivity and EPR studies Phys. Chem. Chem. Phys., 1999,1, 3561-3565 10.1039/A900683D
- [2] Fe3O4 nanosphere@microporous organic networks: enhanced anode performances in lithium ion batteries through carbonization? Byungho Lim,Jaewon Jin,Jin Yoo,Seung Yong Han,Kyeongyeol Kim,Sungah Kang,Nojin Park,Sang Moon Lee,Hae Jin Kim,Seung Uk SonChem. Commun., 2014,50, 7723-7726 10.1039/C4CC02068E
- [3] Establishing plasmon contribution to chemical reactions: alkoxyamines as a thermal probe? Olga Guselnikova,Gérard Audran,Jean-Patrick Joly,Andrii Trelin,Evgeny V. Tretyakov,Vaclav Svorcik,Oleksiy Lyutakov,Sylvain R. A. MarqueChem. Sci., 2021,12, 4154-4161 10.1039/D0SC06470J
- [4] Fatty acid positional distribution in colostrum and mature milk of women living in Inner Mongolia, North Jiangsu and Guangxi of China? Long Deng,Qian Zou,Biao Liu,Wenhui Ye,Chengfei Zhuo,Li Chen,Ze-Yuan Deng,Ya-Wei Fan,Jing LiFood Funct., 2018,9, 4234-4245 10.1039/C8FO00787J
- [5] Enabling shape memory and healable effects in a conjugated polymer by incorporating siloxane via dynamic imine bond? Yaling Zhang,Chunhui Dai,Shiwei Zhou,Bin LiuChem. Commun., 2018,54, 10092-10095 10.1039/C8CC05410J
- [6] Excitation energies from ground-state density-functionals by means of generator coordinates A. B. F. da Silva,K. CapellePhys. Chem. Chem. Phys., 2009,11, 4564-4569 10.1039/B902529D
- [7] Evolution and characterization of a benzylguanine-binding RNA aptamer? J. Xu,T. J. Carrocci,A. A. HoskinsChem. Commun., 2016,52, 549-552 10.1039/C5CC07605F
- [8] Excimer emission and magnetoluminescence of radical-based zinc(ii) complexes doped in host crystals? Shojiro Kimura,Tetsuro KusamotoChem. Commun., 2020,56, 11195-11198 10.1039/D0CC04830E
- [9] Ester-directed orthogonal dual C–H activation and ortho aryl C–H alkenylation via distal weak coordination? Manickam Bakthadoss,Tadiparthi Thirupathi Reddy,Vishal Agarwal,Duddu S. SharadaChem. Commun., 2022,58, 1406-1409 10.1039/D1CC06097J
- [10] Fe(iii)-mediated isomerization of α,α-diarylallylic alcohols to ketones via radical 1,2-aryl migration? Ziyang Deng,Changwei Chen,Sunliang CuiRSC Adv., 2016,6, 93753-93755 10.1039/C6RA20007A
Journal Name：ANALYSTANALYST
research_products
-
CAS no.: 89640-58-4
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.png)
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![2,2-Difluoro-3-[methyl(2-methylbutyl)amino]propanoic acid](https://ossimg.kuujia.com/scimg/2138500/2138166-62-6x500.png)
![2-(1H-indol-3-yl)-N-{[6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]methyl}acetamide](https://ossimg.kuujia.com/scimg/2034500/2034271-14-0x500.png)