Title : Determination of theophylline in tea and drug formulation using a Nafion(R)/lead-ruthenium oxide pyrochlore chemically modified electrode.

Pub. Date : 1999 Oct

PMID : 18967754






3 Functional Relationships(s)
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1 The calibration graph for the determination of theophylline was linear up to 100 muM in 0.1 M, pH 3 phosphate solution with a detection limit (S/N=3) of 0.1 muM. Theophylline latexin Homo sapiens
2 The calibration graph for the determination of theophylline was linear up to 100 muM in 0.1 M, pH 3 phosphate solution with a detection limit (S/N=3) of 0.1 muM. Theophylline latexin Homo sapiens
3 The results of 15 successive repetitive measurement-regeneration cycles showed a relative standard deviation of 1.3% for 10 muM theophylline indicating that the electrode renewal gives a good reproducible surface. Theophylline latexin Homo sapiens