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RESEARCH PRODUCT

Immobilization of reagents by polymeric materials. Determination of metamizol

J. Martínez CalatayudL. Lahuerta Zamora

subject

ChromatographyCalibration curveChemistryRelative standard deviationUnsaturated polyesterLead dioxideAnalytical Chemistrylaw.inventionchemistry.chemical_compoundlawReagentAtomic absorption spectroscopyDispersion (chemistry)Nuclear chemistry

description

Abstract A method for immobilization of inorganic reagents, based on the dispersion of the reagent into an unsaturated polyester solution is applied to immobilization of lead dioxide. The obtained solid is of application in a flow-injection manifold for indirect atomic absorption determination of metamizol in pharmaceutical formulations. The procedure gives a linear calibration graph up to 6 ppm of metamizol with a relative standard deviation of 1.6% (3.0 mg/l) and a sample throughput of 72 hr−1.

yearjournalcountryeditionlanguage
1992-08-03Talanta
https://doi.org/10.1016/0039-9140(93)80167-p