Interlaboratorial comparison for analysis of total hardness and chloride in water

Quimica nova

Santos, Lucia Helena Menezes¹  Pereira, Sônia Elisa Carvalho¹  Ferreira-Leitão, Viridiana Santana¹  Melo, Jefferson Lee Lima de¹  Clemente, Armando Augusto²  Harcar, Vera²  Andrade, Débora França de³ 

[1] Instituto Nacional de Tecnologia, Rio de Janeiro, Brasil;Rede de Tecnologia do Rio de Janeiro, Rio de Janeiro, Brasil;Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

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 】

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

【 授权许可】

CC BY