Determinação de elementos-traço: relatório de dois exercícios interlaboratoriais Trace elements determination: report on two interlaboratory exercises

• Main Authors: Wilson F. Jardim, Antonio C. Barbosa, Reinaldo C. Campos
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 1997-12-01
• Series: Química Nova
• Subjects: trace analysis; intercomparison exercise; quality assurance
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000600013

<abstract language="eng">Results of two intercomparison exercises are reported. In the first one, the participants were asked to determine Cd, Cu, Pb and Zn, at the sub mg mL-1 level, in an acidified aqueous solution. In the second one, the participants were asked to determine mercury (total) in two homogeneous biological samples, hair and fish. The exercises were considered satisfactory and few reported results were discharged (3s criteria).