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FIA-Fluorimetric assembly for the determination of noradrenaline hydrochloride by a solid-phase reactor with immobilized hexacyanoferrate(III) |
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| Authors: | Salome Laredo Ortiz Gustavo A Rivas José Martínez Calatayud |
| Institution: | (1) Departmento de Quimica Analitica, Universitat de Valencia, Valencia, Spain;(2) Departamento de Quimica, CEU, 46113 Moncada, Valencia, Spain;(3) Present address: Departamento de Fisico-Química, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Suc 16, CC 61, 5016 Córdoba, Argentina |
| Abstract: | An FIA assembly provided with immobilized hexacyanoferrate(III) is proposed for the fluorimetric determination of noradrenaline hydrochloride. The oxidative reagent is immobilized by means of a strong anion-exchange resin. The FIA manifold is very simple and the calibration graph is linear over the range 0.5–75mgl–1 noradrenaline hydrochloride with an r.s.d of 0.88% (17 replicates) and a sample throughput of 84h–1. Foreign compounds such as NaCl, sucrose, lactose and sodium sulfate caused no significant errors. The procedure is applied to the determination of noradrenaline in a medicinal formulation. |
| Keywords: | noradrenaline hydrochloride FIA solid-phase reactor fluorimetry |
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