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Moghaddam AB, Esmaieli M, Khodadadi AA, Ganjkhanlou Y, Asheghali D. Direct electron transfer and biocatalytic activity of iron storage protein molecules immobilized on electrodeposited cobalt oxide nanoparticles. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0554-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gopu G, Manisankar P, Muralidharan B, Vedhi C. Stripping Voltammetric Determination of Analgesics in Their Pharmaceuticals Using Nano-Riboflavin-Modified Glassy Carbon Electrode. INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY 2011. [DOI: 10.4061/2011/269452] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cyclic voltammetric behaviors of three analgesics, acetaminophen (AAP), acetylsalicylic acid (ASA), and dipyrone (DP), were studied using nano-riboflavin-modified glassy carbon electrode. One well-defined oxidation peak each for AAP and ASA and three oxidation peaks for DP were observed. The influence of pH, scan rate, and concentration reveals irreversible diffusion controlled reaction. The SEM analysis confirmed good accumulation of the drugs on the electrode surface. Calibration was made under the maximum peak current conditions. The concentration range studied for the determination of drugs was 0.02 to 0.4 μg mL−1for AAP and ASA and 0.025 to 0.4 μg mL−1for DP. The lower limit of detection observed for AAP, ASA, and DP was 0.016, 0.007 μg mL−1, and 0.013 μg mL−1, respectively. The suitability of the method for the determination of these analgesics in pharmaceutical preparations and urine samples was also ascertained.
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Affiliation(s)
- Gopalakrishnan Gopu
- Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamilnadu, India
| | - Paramasivam Manisankar
- Department of Industrial Chemistry, Alagappa University, Karaikudi 630 003, Tamilnadu, India
| | | | - Chinnapiyan Vedhi
- Department of Chemistry, V.O. Chidambaram College, Tuticorin 628 008, Tamilnadu, India
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Mohammadi A, Moghaddam AB, Ahadi S, Dinarvand R, Khodadadi AA. Application of cobalt oxide nanoparticles as an electron transfer facilitator in direct electron transfer and biocatalytic reactivity of cytochrome c. J APPL ELECTROCHEM 2010. [DOI: 10.1007/s10800-010-0219-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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