References
- Bro-Rasmussen , F. and Hjarde , W. 1957a . Determination of α-tocopherol by chromatography on secondary magnesium phosphate . Acta Chem. Scand. , 11 : 34 – 43 .
- Bro-Rasmussen , F. and Hjarde , W. 1957b . Quantitative determination of the individual tocopherols by chromatography on secondary magnesium phosphate . Acta Chem. Scand. , 11 : 44 – 52 .