dc.contributor.author | Ulusoy, Songul | |
dc.contributor.author | Akcay, Mehmet | |
dc.date.accessioned | 2019-07-27T12:10:23Z | |
dc.date.accessioned | 2019-07-28T09:39:37Z | |
dc.date.available | 2019-07-27T12:10:23Z | |
dc.date.available | 2019-07-28T09:39:37Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1936-9751 | |
dc.identifier.issn | 1936-976X | |
dc.identifier.uri | https://dx.doi.org/10.1007/s12161-017-0996-x | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/6558 | |
dc.description | WOS: 000418836200026 | en_US |
dc.description.abstract | A preconcentration and determination method was developed for vitamins B1 (thiamin) and B2 (riboflavin) at trace amounts based on cloud point extraction (CPE) and HPLC analysis. As a new approach in this method, Ag(I) ion was used to increase the transferring of vitamin molecules to micelle medium. Then, the formed complexes between Ag(I) ions and vitamins were easily extracted to nonionic surfactant phase. Following phase separation by centrifugation, aqua phase was separated and then surfactant-rich phase was diluted with 300 mu L of 0.1 M HCl in 50% methanol. Under the optimized conditions, linear calibration curves were obtained in the range of 4-400 ng mL(-1) for thiamin and 1-500 ng mL(-1) for riboflavin. The detection limits of method were calculated as 1.33 and 0.35 ng mL(-1), respectively. The relative standard deviations were 2.90 and 2.20% for five replicate measurements at 100 ng mL(-1) concentration level. The method was validated by the analysis of three certified reference materials (NIST 3280, BCR-485, and ERM-BD600) and recovery test. Finally, the method was applied to the determination of vitamins B1 and B2 in real samples, including baby foods, milk, and cereals. | en_US |
dc.description.sponsorship | Cumhuriyet University Scientific Research Projects Commission [F-412] | en_US |
dc.description.sponsorship | This study has been supported by Cumhuriyet University Scientific Research Projects Commission as the research project with the F-412 code. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | SPRINGER | en_US |
dc.relation.isversionof | 10.1007/s12161-017-0996-x | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Vitamin B1 | en_US |
dc.subject | Vitamin B2 | en_US |
dc.subject | HPLC | en_US |
dc.subject | Cloud point extraction | en_US |
dc.subject | Food samples | en_US |
dc.title | Simultaneous Determination of Vitamins B1 and B2 in Food Samples by Modified Cloud Point Extraction Method and HPLC-DAD | en_US |
dc.type | article | en_US |
dc.relation.journal | FOOD ANALYTICAL METHODS | en_US |
dc.contributor.department | [Ulusoy, Songul] Cumhuriyet Univ, Fac Technol, Dept Biomed Engn, TR-58140 Sivas, Turkey -- [Akcay, Mehmet] Cumhuriyet Univ, Dept Chem, Fac Sci, TR-58140 Sivas, Turkey | en_US |
dc.identifier.volume | 11 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.endpage | 269 | en_US |
dc.identifier.startpage | 260 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |