title: Theophylline analysis by direct application of serum to thin layer chromatograms.
abstract: The direct application of 20 microliters of serum to thin layer chromatograms was a rapid and sensitive method for the determination of theophylline. Ten common drugs were shown not to interfere. A comparison with the enzyme immunoassay values obtained in an independent laboratory showed the utility of the method.
mesh_terms: D002855:Chromatography, Thin Layer / Q000379:methods; D006801:Humans; D007124:Immunoenzyme Techniques; D007231:Infant, Newborn; D013806:Theophylline / Q000097:blood*
chemical_list: D013806:Theophylline