Shyla, B. and Vijaya Bhaskar, C. and Nagendrappa, G. (2012) Iron(III) oxidized nucleophilic coupling of catechol with o-tolidine/p-toluidine followed by 1,10-phenanthroline as new and sensitivity improved spectrophotometric methods for iron present in chemicals, pharmaceutical, edible green leaves, nuts and lake water samples. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 86. 152 - 158. ISSN 1873-3557
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A nucleophile formed from iron(III) oxidized catechol in 0.1M hydrochloric acid couple with o-tolidine, system 1/p-toluidine, system 2 to produce dye product, λ max 520nm. The system 1/2 obeys Beer's law in the range 0.08–8.0μgml−1 with molar absorptivity, Sandell sensitivity and regression coefficient values, 4.225×103/3.140×103lmol−1cm−1, 0.0132/0.0178μgcm−2 and 0.9987/0.9981. Iron(II) formed from iron(III) in system 1/2 reacts with 1,10-phenanthroline, λ max 510nm, will constitute sensitivity improved iron determinations with values 0.08–1.6μgml−1, 2.4136×104/2.2511×104lmol−1cm−1, 0.0023/0.0025μgcm−2 and 0.9980/0.9997 corresponding to range, molar absorptivity, Sandell sensitivity and regression coefficient. The results of the systems for iron present in chemicals, pharmaceutical, edible green leaves, nuts and lake water samples are satisfactory since they are comparable with the results of iron determined separately from 1,10-phenanthroline method.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Spectrophotometry, Iron(III), Catechol, o-Tolidine, p-Toluidine, Phenanthroline |
| Subjects: | C Chemical Science > Chemistry |
| Divisions: | Department of > Chemistry |
| Depositing User: | C Swapna Library Assistant |
| Date Deposited: | 24 Jul 2019 05:45 |
| Last Modified: | 24 Jul 2019 05:45 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/5499 |
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