Extraction and Spectrophotometric Determination of Manganese(VII) with N1-Hydroxy-N1,N2-Diphenylbenzamidine

Autor: Bhagwan Singh Chandravanshi, Dejene Ayele
Rok vydání: 1990
Předmět:
Zdroj: Analytical Letters. 23:1729-1741
ISSN: 1532-236X
0003-2719
DOI: 10.1080/00032719008052521
Popis: Spectrophotometric determination of manganese(VII) at 614 nm after its extraction with N1 -hydroxy-N1,N2-diphenylbenzamidine into amyl alcohol at pH 7–8 is described. Beer's law was obeyed for 0.1–10 μg ml−1 Mn(VII). The effects of experimental variables and of several diverse ions on the determination of manganese(VII) have been studied. The method has been applied to the determination of manganese in steels and in water extracts of a commercial tea and is found to be simple, precise and highly selective.
Databáze: OpenAIRE