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Estimation of Gallic Acid Using Vanadium(V)–Eriochrome Cyanine-R System and Application to Some Herbal Plants, Fruit Juices and Wine Samples |
| DUBLIN | CORE | METADATA ITEM | METADATA FOR THIS DOCUMENT |
| 1 | Title | Title of Document | Estimation of Gallic Acid Using Vanadium(V)–Eriochrome Cyanine-R System and Application to Some Herbal Plants, Fruit Juices and Wine Samples |
| 2 | Creator | Author's name, affiliation, country | ANANDAMURTHY SUMA, PADMARAJAIAH NAGARAJA and
NARAYANA ARADHANA
Department of Studies in Chemistry, University of Mysore,
Manasagangotri, Mysore- 570006, Karnataka, India |
| 3 | Subject | Dicipline(s) | Chemical Science |
| 3 | Subject | Keywords | Gallic acid, Vanadium(V), Eriochrome cyanin-R, Spectrophotometry |
| 4 | Description | Abstract | A simple, rapid and sensitive method for the estimation of gallic acid has been developed. It is based on reduction of V(V) by gallic acid to V(IV) which forms complex with Eriochrome cyanine-R (ECR) in presence of cetyl trimethyl ammonium bromide (CTAB) resulting in a stable violet colored species. This showed maximum absorption at 580 nm. The calibration line was linear for gallic acid concentration range of 0.4-9.0 μg/mL, having limit of detection (LOD) and limit of quantification (LOQ) as 0.0044 and 0.0146 μg/mL respectively. Molar extinction coefficient and Sandell’s sensitivity were found to 8.12x104 L mol-1 cm-1 and 0.56x10-3 μg/cm2, respectively. Interference study was also carried out for various species. The accuracy of the proposed method was assessed by Student’s t test and variance ratio F test and the results were comparable with reference 4-nitrobenzenediazonium tetrafluoroborate (NBD) method. The method was successfully used in determining gallic acid in wine, fruit juice and herbal plant samples. |
| 5 | Publishers | Organizing agency, location | WWW Publications, India |
| 6 | Contributor | Sponsor(s) | - |
| 7 | Date | Date (YYYY-MM-DD) | - |
| 8 | Type | Status & genre | Peer-reviewed Article |
| 8 | Type | Type | |
| 9 | Formate | File Formate | PDF |
| 10 | Identifier | Uniform Resource Identifier | Click Here |
| 10 | Identifier | Digital Object Identifier | |
| 11 | Source | Journal/conference title; vol., no. (Year) | Chemical Science Transactions, Volume 3 , Number (1), (2014) |
| 12 | Lanuguage | English=en | en |
| 13 | Relation | Supp.files | |
| 14 | Coverage | | - |
| 15 | Copyright | Copyright and permissions | |
Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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