Spectrofluorimetric determination of cefixime using terbium-danofloxacin probe

Manzoori, Jamshid L and Amjadi, Mohammad and Soltani, Naser and Jouyban, Abolghasem (2014) Spectrofluorimetric determination of cefixime using terbium-danofloxacin probe. Iranian Journal of Basic Medical Sciences, 17 (4). pp. 256-262.

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Abstract

Objective(s):Cefixime (Cfx), is a semi-synthetic third-generation oral cephalosporin antibiotic that is prescribed for the treatment of susceptible infections. There are some procedures for the determination of Cfx in pharmaceutical formulations and biological samples. Herein a spectrofluorimetric method was proposed for Cfx determination based on the fluorescence quenching of terbium-danofloxacin (Tb3+-Dano) in the presence of Cfx. Materials and Methods: Cfx was detected based on fluorescence quenching of terbium-danofloxacin (Tb3+-Dano) in the presence of Cfx with maximum excitation and emission wavelengths at 347 nm and 545 nm, respectively. The quenched fluorescence intensity of Tb3+- Dano system is proportional to the concentration of Cfx. The optimum conditions for the determination of Cfx were studied. Results: The maximum response was achieved under optimum conditions of Tris buffer= 0.008 mol/l (pH 6.5), Tb3+=1×10-4 mol/l and Dano=1×10-4 mol/l. The developed method was evaluated in terms of accuracy, precision and limit of detection. The linear concentration ranges for quantification of Cfx were 8.8×10-8-8.8×10-7 mol/l and 1.1×10-7-8.8×10-7 mol/l in standard and human serum samples with the detection limits (S/N=3) of 2.8×10-8 mol/l and 3.9×10-8 mol/l, respectively. The Cfx was determined in pharmaceutical tablets and spiked serum samples and the results were satisfactory. Conclusion: This method is simple, practical and relatively interference-free for determination of Cfx in pharmaceutical tablets and serum samples.

Item Type: Article
Subjects: QV pharmacology
Divisions: Journals > Iranian J Basic Medical Sciences
Depositing User: ijbms ijbms
Date Deposited: 08 Oct 2017 14:47
Last Modified: 08 Oct 2017 14:47
URI: http://eprints.mums.ac.ir/id/eprint/7922

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