High Pressure Liquid Chromatographic Determination of 4,4′-(Diazoamino)-dibenzenesulfonic Acid in FD&C Yellow No. 6
- 1 January 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of AOAC INTERNATIONAL
- Vol. 60 (1) , 168-172
- https://doi.org/10.1093/jaoac/60.1.168
Abstract
Fourteen analysts from 9 laboratories evaluated a high pressure liquid chromatographic procedure for the determination of 4,4′-(diazoamino)-dibenzenesulfonic acid (DAADBSA) in FD&C Yellow No. 6. Each collaborator analyzed 5 samples nominally containing 0—0.050% DAADBSA. The repeatability and reproducibility of the method are estimated to be 0.003% and 0.020%, respectively. The method has been adopted as official first action.This publication has 0 references indexed in Scilit: