Room temperature phosphorimetry studies of caffeine and theophylline.
Room temperature phosphorimetry (RTP) of a mixture of two methylxanthines is described. The similar spectral characteristics of caffeine and theophylline require use of a separation procedure prior to RTP analysis. A facile and efficient separation method is reported, and the efficiency of the separation, and the RTP characteristics of the methylxanthines are presented.
Perry
L M
LM
Department of Chemistry, University of Florida, Gainesville, FL 32611, U.S.A.
Shao
E Y
EY
Winefordner
J D
JD