Acta Pharm. 56 (2006) 379-397

full paper

Original research paper

 

Quality assessment of the procedure for determination of heavy metals on reactive carriers

 

JADRANKA VUKOVIĆ*, VLADIMIR GRDINIĆ, RENATA JURIŠIĆ GRUBEŠIĆ and OGNJEN ŽUPANIĆ

jadranka@pharma.hr

Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia

Accepted September 8, 2006

 

Quality control and validity check of the solid-phase spectrophotometric procedure (Me-SPS) for determination of heavy metals important in pharmaceutical practice: zinc (Zn-SPS), lead (Pb-SPS), and cobalt (Co-SPS) were performed using a very simple and informative prevalidation concept. Further, metrological characteristics of the Me-SPS procedure together with the diagnosis of particular prevalidation steps were evaluated. Favourable prevalidation characteristics, i.e., ideal analytical function, homogeneity of data material, low limit of quantitation, and acceptable accuracy verified the quality of the Me-SPS procedure and pointed to the limitations of some investigated systems.

 

Keywords: analytical procedure quality control, prevalidation strategy, heavy metals, solid-phase spectrophotometry