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Dissolução eletrolítica para a determinação de elementos de liga em aço ferramenta por ICP-AES

Ana Paula G. Gervasio, Boaventura Freire dos Reis, Maria Fernanda Giné, Henrique Bergamin Filho
2000 Química Nova  
Recebido em 16/7/99; aceito em 14/12/99 ELECTROLYTIC DISSOLUTION FOR CONSTITUENTS DETERMINATION IN TOOL STEELS BY ICP-AES. Different methods have been applied to solve special problems of metal analysis. First, the solid samples of tool steels were analyzed by X-ray fluorescence. Alternatively, an on-line electrodissolution implemented in a flow injection system and conventional dissolution procedure for determination of W, Mo, V and Cr in tool steels by ICP-AES is described. The resulting
more » ... The resulting analyte solutions were compared with conventional dissolution procedure and determination by ICP-AES. The electrolytic procedure presented a good performance characterized by a sample throughput of 164 determinations per hour. Results were in agreement with those obtained by conventional acid dissolution.
doi:10.1590/s0100-40422000000400010 fatcat:s56c5gemcjgfppnc47bvedxgg4