Cerium(IV) arsenite as a solid-phase reactor for use in flow-injection analysis. Spectrophotometric determination of promethazine

6533b86cfe1ef96bd12c896e

RESEARCH PRODUCT

Cerium(IV) arsenite as a solid-phase reactor for use in flow-injection analysis. Spectrophotometric determination of promethazine

V. Garcia Mateo J. Martínez Calatayud

subject

Flow injection analysis Chromatography medicine.diagnostic_test Calibration curve chemistry.chemical_element Biochemistry Analytical Chemistry Promethazine chemistry.chemical_compound Cerium chemistry Phase (matter)Spectrophotometry Oxidizing agent medicine Environmental Chemistry Spectroscopy Arsenite medicine.drug

description

Abstract Cerium(IV) arsenite is used as a strongly oxidizing solid-phase reactor in an unsegmented continuous-flow injection assembly. Its preparation procedure produces particles of uniform size with suitable physico-chemical properties for use in a continuous-flow system. A manifold is proposed for the determination of promethazine in pharmaceutical preparations by spectrophotometric monitoring of the red colour produced by the oxidized drug. A linear calibration graph is obtained over the range 5–400 μg ml −1 of promethazine.

year	journal	country	edition	language
1992-07-01	Analytica Chimica Acta

https://doi.org/10.1016/0003-2670(92)87016-e

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