Separation of RRR-α-Tocopherol by Chiral Chromatography

التفاصيل البيبلوغرافية
العنوان: Separation of RRR-α-Tocopherol by Chiral Chromatography
المؤلفون: Brendon D. Gill, Harvey E. Indyk
المصدر: Journal of AOAC International. 103(5)
سنة النشر: 2020
مصطلحات موضوعية: Resolution (mass spectrometry), medicine.medical_treatment, alpha-Tocopherol, Tocopherols, 01 natural sciences, Dietary vitamin, Analytical Chemistry, medicine, Environmental Chemistry, Vitamin E, Tocopherol, Hplc method, Pharmacology, Chromatography, 010405 organic chemistry, Chemistry, 010401 analytical chemistry, Stereoisomerism, 0104 chemical sciences, Diet, Chiral column chromatography, Food products, Selectivity, Agronomy and Crop Science, Food Science
الوصف: Background α-Tocopherol can exist as eight possible stereoisomers due to the presence of three chiral carbons. Regulations and industry guidelines necessitate that dietary vitamin E intakes be based on the vitamin E activity of RRR-α-tocopherol. Food products fortified with synthetic all-rac-α-tocopherol or all-rac-α-tocopheryl acetate during manufacturing will require chiral separation of the α-tocopherol stereoisomers for accurate estimation of vitamin E activity. Objective The development of an HPLC method utilizing a chiral column for the chromatographic separation of RRR-α-tocopherol from other α-tocopherol stereoisomers. Method Normal phase liquid chromatographic separation using a polysaccharide-based chiral column with fluorescence detection of α-tocopherol stereoisomers. Results The described chromatographic method achieves baseline resolution of RRR-α-tocopherol from its stereoisomers. Method selectivity, precision, and robustness were evaluated and acceptable performance was achieved. Conclusions The chromatographic method was found to be suitable for application where both RRR-α-tocopherol content and total α-tocopherol content are required for routine compliance testing. Highlights A robust and precise chomatographic method for the baseline resolution of RRR-α-tocopherol from its stereoisomers was acheived.
تدمد: 1944-7922
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d41fbbfb286b81d8ce36cca15d2e6c47
https://pubmed.ncbi.nlm.nih.gov/33241398
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....d41fbbfb286b81d8ce36cca15d2e6c47
قاعدة البيانات: OpenAIRE