6533b7d9fe1ef96bd126d71b
RESEARCH PRODUCT
FI automatic method for the determination of copper(II) based on coproporphyrin I-Cu(II)/TCPO/H(2)O(2) chemiluminescence reaction for the screening of waters.
Pilar Campíns-falcóMiguel ValcárcelMercedes GallegoS. Meseguer-lloretSoledad Cárdenassubject
Detection limitReproducibilityAccuracy and precisionChemistryAnalytical chemistrychemistry.chemical_elementCopperAnalytical Chemistrylaw.inventionchemistry.chemical_compoundlawTCPOSelectivityHydrogen peroxideChemiluminescencedescription
Abstract In this paper, an automatic method for the screening of water samples containing Cu(II) was proposed, based on peryoxalate chemiluminescence reaction using coproporphyrin I as fluorophor compound to provide selectivity and a simple flow injection (FI) chemiluminescence detector (CLD). FI system conditions were chosen in order to distinguish samples over or under legislation limit established (50 μg l−1) with high reliability. The detection limit found was 9 μg l−1 and the linear dynamic range was 15–125 μg l−1 of Cu(II). Repeatibility and reproducibility studies gave good precision and accuracy with recovery near 100%. Under these conditions, the method resulted selective and only Fe(II), Fe(III) and Pb(II) could interfere, but at a concentration level higher than their normal concentration in waters. The proposed method was found to be highly reliable for screening purposes and it was successfully applied to the screening of a variety of real water samples.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-12 | Talanta |