RT Journal
T1 MEthods of vitamin assay
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1949
FD January 22
VO 139
IS 4
SP 268
OP 268
DO 10.1001/jama.1949.02900210074031
UL http://dx.doi.org/10.1001/jama.1949.02900210074031
AB This book, prepared by a group of vitamin chemists, presents in detail satisfactory procedures and methods of assay available for vitamins A, D, C, B1 B2 and nicotinic acid and carotene. There is a reference list to the literature on the other vitamins and vitamin-like substances, and further revisions are promised to include assay methods for these. Wherever applicable, the microbiologic chemical and physical methods of assay are described in detail. Each method explains the principle of the assay, the laboratory apparatus required, the preparation of the reagents and the detailed procedure followed by comments. There is also a general description of the vitamins, including their chemical and physical properties. An informative chapter on sampling for vitamin analyses is included for various types of food products, pharmaceuticals and biologic fluids. The use of check samples in the control of vitamin methods is specified in another chapter. This book