Evaluation of Uncertainty in Determination of Arsenic in Concentrate by Potassium Bromate Titration
In this paper,according to the national standard(GB/T3884.9-2012)potassium bromate titration method for the determination of arsenic in copper concentrate,the determination process of distillation,standard titration solution concentration,atomic weight,sample weighing and dissolution,apparatus,environment,titration,repeatability and other influential components were evaluated,and the synthetic uncertainty and extended uncertainty were evaluated.The main and secondary uncertainty components are clearly clarified,which is conducive to improving the measurement quality and improving the accuracy of analysis results.
arsenicstandard uncertaintycopper concentratesynthetic standard uncertaintypotassium bromate titra-tion
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