Micellanized spectrophotometric method for the determination of beryllium using haematoxylin

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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Official URL: https://doi.org/10.1016/j.saa.2006.10.020


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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