A flow-through optosensor for tryptophan is described. The sensor is developed in conjunction with a how-injection analysis system and uses immobilized beta-cyclodextrin as the sensing agent. The detection limit for tryptophan was 4 ng ml(-1). The RSD for determination of 1 mu g ml(-1) of tryptophan was 2.8%.
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Univ Coimbra, Fac Pharm, Coimbra, Portugal
Univ Coimbra, Ctr Neurosci & Cell Biol, Coimbra, PortugalUniv Coimbra, Fac Pharm, Coimbra, Portugal
Simoes, Susana M. N.
Rey-Rico, Ana
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Univ Santiago de Compostela, Fac Farm, Dept Farm & Tecnol Farmaceut, Santiago De Compostela, Spain
Univ Saarland, Ctr Expt Orthopaed, Homburg, GermanyUniv Coimbra, Fac Pharm, Coimbra, Portugal
Rey-Rico, Ana
Concheiro, Angel
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Univ Santiago de Compostela, Fac Farm, Dept Farm & Tecnol Farmaceut, Santiago De Compostela, SpainUniv Coimbra, Fac Pharm, Coimbra, Portugal
Concheiro, Angel
Alvarez-Lorenzo, Carmen
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Univ Santiago de Compostela, Fac Farm, Dept Farm & Tecnol Farmaceut, Santiago De Compostela, SpainUniv Coimbra, Fac Pharm, Coimbra, Portugal