The determination of vitamin E in food by colorimetry and gas-liquid chromatography
ANALYSTANALYST Pub Date: DOI: 10.1039/AN9739800161
Abstract
Two methods for the determination of vitamin E in food are described: a colorimetric procedure for determining total tocopherols, based on their reaction with iron(III) chloride and bathophenanthroline (4,7-diphenyl-1,10-phenanthroline), and a gas-liquid chromatographic method for determining individual tocopherols. Techniques for the removal of interfering substances such as sterols and tocopherol dimers are given and results obtained by both methods for the vitamin E contents of some uncooked foods are compared. A complete determination can be carried out in 1 day by colorimetry and in 2 days by gas-liquid chromatography.
Recommended Literature
- [1] An aquatic host–guest complex between a supramolecular G-quadruplex and the anticancer drug doxorubicin? José M. Rivera,Mariana Martín-Hidalgo,Jean C. Rivera-RíosOrg. Biomol. Chem., 2012,10, 7562-7565 10.1039/C2OB25913C
- [2] An inter-tangled network of redox-active and conducting polymers as a cathode for ultrafast rechargeable batteries Jieun Kim,Han-Saem Park,Tae-Hee Kim,Sung Yeol Kim,Hyun-Kon SongPhys. Chem. Chem. Phys., 2014,16, 5295-5300 10.1039/C3CP54624A
- [3] An integrated droplet-digital microfluidic system for on-demand droplet creation, mixing, incubation, and sorting? Lab Chip, 2019,19, 524-535 10.1039/C8LC01170B
- [4] An air-stable organometallic polymer containing titanafluorene moieties obtained by the Sonogashira–Hagihara cross-coupling polycondensation? Alvin Tanudjaja,Shinsuke Inagi,Fusao Kitamura,Toshikazu Takata,Ikuyoshi TomitaDalton Trans., 2021,50, 3037-3043 10.1039/D0DT03663C
- [5] An investigation of the electrochemical delithiation process of carbon coated α-Fe2O3nanoparticles Adrian Brandt,Florian Winter,Sebastian Klamor,Frank Berkemeier,Jatinkumar Rana,Rainer P?ttgen,Andrea BalducciJ. Mater. Chem. A, 2013,1, 11229-11236 10.1039/C3TA11821E
- [6] An intermolecular C–H oxidizing strategy to access highly fused carbazole skeletons from simple naphthylamines? Christian K. Rank,Alexander W. Jones,Tatjana Wall,Patrick Di Martino-Fumo,Sarah Schr?ck,Markus Gerhards,Frederic W. PatureauChem. Commun., 2019,55, 13749-13752 10.1039/C9CC05240B
- [7] An algal process treatment combined with the Fenton reaction for high concentrations of amoxicillin and cefradine Haitao Li,Yu Pan,Zhizhi Wang,Shan Chen,Ruixin Guo,Jianqiu ChenRSC Adv., 2015,5, 100775-100782 10.1039/C5RA21508K
- [8] An assay for the enzyme N-acetyl-β-d-glucosaminidase (NAGase) based on electrochemical detection using screen-printed carbon electrodes (SPCEs) R. M. Pemberton,J. P. Hart,T. T. MottramAnalyst, 2001,126, 1866-1871 10.1039/B104874K
- [9] An approach to 7-aza-1-phosphanorbornane complexes: strain promoted rearrangement of 1-iminylphosphirane complexes and cycloaddition with olefins? Yang Xu,Min Wang,Donghui Wei,Rongqiang Tian,Zheng Duan,Fran?ois MatheyDalton Trans., 2019,48, 5523-5526 10.1039/C9DT00838A
- [10] Aggregation of biologically important peptides and proteins: inhibition or acceleration depending on protein and metal ion concentrations Benjamin Gabriel Poulson,Kacper Szczepski,Joanna Izabela Lachowicz,Lukasz Jaremko,Abdul-Hamid Emwas,Mariusz JaremkoRSC Adv., 2020,10, 215-227 10.1039/C9RA09350H
Journal Name：ANALYSTANALYST
research_products
-
CAS no.: 89640-58-4
![1,2,3,4,5,6-Hexahydro-[2,3]bipyridinyl-6-ol](https://ossimg.kuujia.com/scimg/1271000/1270529-38-8x500.png)
![N-(3-cyanothiolan-3-yl)-2-[(2,2,2-trifluoroethyl)sulfanyl]pyridine-4-carboxamide](https://ossimg.kuujia.com/scimg/1444500/1444113-98-7x500.png)
![2,2-Difluoro-3-[methyl(2-methylbutyl)amino]propanoic acid](https://ossimg.kuujia.com/scimg/2138500/2138166-62-6x500.png)
![2-(1H-indol-3-yl)-N-{[6-(thiophen-2-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]methyl}acetamide](https://ossimg.kuujia.com/scimg/2034500/2034271-14-0x500.png)