The determination of vitamin A in cod-liver oils, (a) biologically, (b) chemically, (c) physically, with a statistical examination of the results: Further evidence that the intensity of absorption at 328mmu gives the best agreement with the biological measure of vitamin A in cod-liver oils.
Coward
K H
KH
The Pharmacological Laboratories of the Pharmaceutical Society of Great Britain.
Dyer
F J
FJ