Interference by caffeine in polarization fluoroimmunoassays for theophylline in external quality assurance samples.
Wicks
J F
JF
Cardiff Bioanalytical Services Ltd, Cardiff Medicentre, Heath Park, UK.
Myring
A
A
Wilson
J F
JF
D016477:Artifacts; D002110:Caffeine / Q000032:analysis*; D016231:Fluorescence Polarization Immunoassay; D011786:Quality Control; D013806:Theophylline / Q000032:analysis*
D002110:Caffeine; D013806:Theophylline