Xin G. Analysis of the Results of Proficiency Testing for the Determination of Total Zinc and Metallic Zinc in Zinc Powder. International Journal of Advance in Applied Science Research [Internet]. 2026 Sep. 4 [cited 2026 Sep. 19];5(8):1-6. Available from: https://h-tsp.com/index.php/ijaasr/article/view/337