1966 Volume 86 Issue 9 Pages 859-860
A simple infrared spectrophotometric method is offered for rapid simultaneous determination of acetanilide and phenacetine in their pharmaceutical preparations containing acetanilide, phenacetine, and caffeine. Acetone is chosen as the solvent, and the key bands used for acetani1ide and phenacetine are 695 and 827 cm-1, respectively, and these two components can be determined easily without interference of other components by the use of two available base lines. This method gave good results in both standard mixed samples and unknown samples.
