Gomaa C, Taha A
J Pharm Sci. 1975 Aug;64(8):1398-400. doi: 10.1002/jps.2600640832.
A charge-transfer spectrophotometric method was developed for unit-dose assay of the tropine alkaloids and some of their synthetic analogs. The high molar absorptivities of the charge-transfer bands of the alkaloids with iodine in ethylene dichloride resulted in improved recoveries and good precision, particularly at the low dose levels of pediatric and hypodermic tablets.
