Interlaboratorial comparison for analysis of total hardness and chloride in water

Química Nova

Santos, Lucia Helena Menezes¹  Pereira, Sônia Elisa Carvalho¹  Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil¹  Ferreira-Leitão, Viridiana Santana¹  Andrade, Débora França de¹  Instituto Nacional de Tecnologia, Rio de Janeiro, Brasil¹  Rede de Tecnologia do Rio de Janeiro, Rio de Janeiro, Brasil¹  Clemente, Armando Augusto¹  Melo, Jefferson Lee Lima de¹  Harcar, Vera¹ 

关键词: interlaboratorial comparison;    hardness;    chloride.;   

DOI  :  10.1590/S0100-40422010000800028

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Interlaboratorial comparison of the determination of hardness and chloride in water had been performed by 38 and 37 laboratories, respectively. In all cases the participating laboratories used its routine methods. Homogeneity and stability testing were performed on the samples sent to the laboratories. The codified results are graphically reported and compared to assigned value, determined by the consensus of the laboratories. Satisfactory results were obtained for 71 and 73% of the laboratories, considering hardness and chloride determination, respectively.

【 授权许可】

Unknown