STUDIES IN VITAMIN-A .1. A CHROMATOGRAPHIC METHOD FOR SEPARATING FREE AND ESTERIFIED VITAMIN-A

[1] A quartz photoelectric spectrophotometer [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1941, 31 (11) : 682 - 689

[2] Adsorption experiments with vitamin A concentrates. [J]. BIOCHEMICAL JOURNAL, 1934, 28 : 1702 - 1711

[3] The distribution of vitamin A between light petroleum and aqueous methyl alcohol. [J]. BIOCHEMICAL JOURNAL, 1936, 30 : 1249 - 1252

[4] THE DETERMINATION OF CAROTENE AND VITAMIN-A IN BUTTER AND MARGARINE [J]. ANALYST, 1946, 71 (838) : 15 - 20

[5] HOLMES HN, 1939, J BIOL CHEM, V127, P49

[6] MANN T. B., 1943, Analyst, V68, P233, DOI 10.1039/an943680233c

[7] MEUNIER P, 1944, B SOC CHIM BIOL, V219, P141

[8] The chromatographic separation of vitamin A-alcohol, vitamin A-ester and beta-carotine and its spectrophotometric, and photometric grade determination respectively [J]. HELVETICA CHIMICA ACTA, 1944, 27 : 443 - 457

[9] REED G., 1944, Industrial and Engineering Chemistry. Analytical edition, V16, P509, DOI 10.1021/i560132a010

[10] Reti L, 1935, CR SOC BIOL, V120, P577

[1] A quartz photoelectric spectrophotometer [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1941, 31 (11) : 682 - 689

[2] Adsorption experiments with vitamin A concentrates. [J]. BIOCHEMICAL JOURNAL, 1934, 28 : 1702 - 1711

[3] The distribution of vitamin A between light petroleum and aqueous methyl alcohol. [J]. BIOCHEMICAL JOURNAL, 1936, 30 : 1249 - 1252

[4] THE DETERMINATION OF CAROTENE AND VITAMIN-A IN BUTTER AND MARGARINE [J]. ANALYST, 1946, 71 (838) : 15 - 20

[5] HOLMES HN, 1939, J BIOL CHEM, V127, P49

[6] MANN T. B., 1943, Analyst, V68, P233, DOI 10.1039/an943680233c

[7] MEUNIER P, 1944, B SOC CHIM BIOL, V219, P141

[8] The chromatographic separation of vitamin A-alcohol, vitamin A-ester and beta-carotine and its spectrophotometric, and photometric grade determination respectively [J]. HELVETICA CHIMICA ACTA, 1944, 27 : 443 - 457

[9] REED G., 1944, Industrial and Engineering Chemistry. Analytical edition, V16, P509, DOI 10.1021/i560132a010

[10] Reti L, 1935, CR SOC BIOL, V120, P577