Dayananda, B. P. and Revanasiddappa, H. D. and Kiran Kumar, T. N. (2007) Micellanized spectrophotometric method for the determination of beryllium using haematoxylin. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 67 (5). 1333 - 1338. ISSN 1386-1425
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A simple and sensitized spectrophotometric method for the determination of trace amounts of beryllium has been described. The method is based on the formation of a ternary complex by the reaction of beryllium with haematoxylin in the presence of micellar medium (cationic surfactant, cetyltrimethylammonium bromide). The ternary complex of beryllium has a maximum absorbance at 592nm and showed an excellent sensitivity (molar absorption coefficient of 7.07×104Lmol−1cm−1 and the Sandell's sensitivity being 1.27×10−4μgcm−2) and reproducibility (within-day precision: R.S.D.≤0.36, n=5, between-day precision: R.S.D.≤0.65, n=5). Linearity was achieved over the range 0.01–0.1μgmL−1 of beryllium with a correlation coefficient of 0.9999. The effect of foreign substances on the determination has been examined. The proposed procedure has been applied to the determination of beryllium in water samples.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Beryllium, Spectrophotometric method, Haematoxylin, Micelle, Surfactant, Cetyltrimethylammonium bromide |
| Subjects: | C Chemical Science > Chemistry |
| Divisions: | Department of > Chemistry |
| Depositing User: | C Swapna Library Assistant |
| Date Deposited: | 12 Sep 2019 05:22 |
| Last Modified: | 12 Sep 2019 05:22 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/8058 |
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