Spectrophotometric determination of niobium(V) after extraction in the presence of thiocyanate with the ethylene-bis-(triphenylphosphonium) cation

✍ Scribed by D. Thorburn Burns; D. Chimpalee

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 312 KB
• Volume: 204
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)86377-1

✦ Synopsis

Niobium(V) (O-20 ,ug) can be determined spectrophotometrically after its extraction as ethylene-bis-(triphenylphosphonium) thiocyanatoniobate (V) into chloroform. The effects of diverse ions and masking studies are reported. The system is applied to the determination of mobmm in a range of steels.