122 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Table I Recoveries ofc•-Tocopheryl Acetate from Cosmetics Bath Oil Cream Shampoo Vitamin Added Recovery Added Recovery Added Recovery Level (%) (rag) (%) (mg) (%) (rag) (%) 0.1 140.0 93.0 140.0 95.1 11.4 104.0 11.4 96.5 2.3 100.0 2.3 100.9 2.3 103.8 ß 1.0 100.0 1.0 100.0 1.0 100.0 66.1 108.9 58.6 a 66.1 99.5 58.6 a 66.1 101.7 11.3 85.4 10.& 11.3 104 10.0 • 7.0 99 10.2 b 7.0 106 10.2 b 7.0 103 10.2 b 1.0 96 3.9 a 1.0 96 3.9 • 93.9 92.2 89.3 85.4 98.0 96.0 97.0 97 97 aExtracted with hexane from acidic aqueous solution. UExtracted with hexane-ether (1:1) from methanol-water (1:1). Table II Recoveries ofc•-Tocopherol from Cosmetics Bath Oil Cream Shampoo Vitamin Added Recovery Added Recovery Added Recovery Level (%) (mg) (%) (rag) (%) (mg) (%) 16.5 90.3 29.8 99.0 16.5 97.0 29.8 96.0 8.5 100.0 29.8 92.0 8.5 100.0 8.5 100.0 5.0 5.1 5.1 0.1 2.5 2.5 103.9 10.4 109.6 98.0 10.4 106.7 107.8 11.2 100.0 11.2 96.4 11.2 97.9 92.0 1.0 87.0 92.0 1.0 91.0 1.2 93.2 1.2 93.2 1.2 93.2 21.0 a 21.0 a 21.0 • 12.8 • 12.8 u 12.8 u 2.9 a 2.9 • 1.0 a 90.5 90.5 90.5 95.0 96.0 95,0 100.0 103.4 96.0 96.0 •Extracted with hexane from acidic aqueous solution. bExtracted with hexane-ether ( 1:1 ) from methanol-water (1:1).

DETERMINATION OF VITAMIN E 123 REFERENCES (1) W. Minkin, H. J. Cohen, and S. B. Frank, Contact dermaoeioeis from deodorants, Arch. Dermatol., 107, 774-5 (1973). (2) J. L. Aeling, P. J. Panagotacos, and R. J. Andreozzi, Allergic contact dermatitis to vitamin E aerosol deodorant, Arch. Dermatol., 108, 579-80 (1973). (3) H. C. Pillsbury, A. J. Sheppard, and D. A. Libby, Gas-liquid chromatographic method for the determina- tion of fat-soluble vitamins. V. Application to pharmaceuticals containing vitamin E,J. Assoc. Off Anal. Chem., 50, 809-14 (1967). (4) F. P. Mahn, V. Viswanathan, C. Plinton, A. Menyharth, and B. Z. Senkowski, Determination of vitamin E in multivitamin products by gas-liquid chromatography,J. Pharm. Sci., 57, 2149-53 (1968). (5) B.C. Rudy, F. P. Mahn, B. Z. Senkowski, A. J. Sheppard, and W. D. Hubbard, Collaborative study of the gas-liquid chromatographic assay for vitamin E, J. Assoc. Off Anal. Chem., 55, 1211-18 (1972). (6) H. M. McNail and E. J. Bonelli, Basic Gas Chromatography, Varian Aerograph, Walnut Creek, Calif., 1969. (7) E. Stahl, Thin-Layer Chromatography, Springer-Verlag, New Yo•k, Heidelberg, Berlin, 1969, Pp. 283- 86.