3-Hydroxy-2-Methyl-1,4-Naphthoquinone Monoxime A New Sensitive Reagent for the Determination of lron(II) and Cobalt(II)
| Main Authors: | (Miss) KAMINI, F. KAMIL, S. K. SINDHWANI |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1983
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6343843 |
Daftar Isi:
- Department of Chemistry, University of Delhi, Delhi-110 007 Manuscript received 23 April 1981, revised 8 July 1982, accepted 28 January 1983 3-Hydroxy-2-methyl-1,4-naphthoquinone monoxime is suggested for the estimation of 21.5-114.0 μg iron(Il) and 3.5-41.5 μg cobalt(II) over the pH range 4.8-7.0 and 5.0-7.5, respectively. The iron(ll) and cobalt(ll) complexes possess maximum absorption at 460 nm and 430 nm, respectively with the molar absorptivlties of 1.28 x 104 and 3.24 x 104 I.cm-1. mole-1. The determinations have been carried out in 50% ethanol. The limits of tolerance of foreign ions have been studied.