| Summary: | <p>Validation of voltammetric method for, Cd, Pb, Zn, Ni, Co, Al and Fe determination in biological samples, has<br />
been done using standard reference materials. Anodic stripping voltammetry has been used on Cu, Cd, Pb and Zn<br />
determination. Mean while adsorptive cathodic stripping voltammetry, in dimethylglioxime complexing agent has<br />
been used for Ni and Co determination, and finally adsorptive cathodic stripping voltammetry in solochrome violete<br />
complexing agent used on Al and Fe determination. The validation method consist of a linearity of standard<br />
calibration, trueness and precision. The validation carried out by using standard reference materials of NIST SRM<br />
1566 b Oyster Tissue and CRM NIES No. 9 Sargasso. Sample digestion has been done by using the micro wave<br />
digester apparatus. It has been shown that the standard curves linearity for all ions were good enough. The ions<br />
determinations in a material standard have a recovery of about 92.2 -104.3 %. From the &ldquo
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