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In this paper, researchers establish and verify a method on the determination of B2O3 in boron nitride through volumetric titration. Three criteria including proportionable system error, extra system error and statistics error are investigated in detail. The results show that, this method meets the requirements of chemical analytical methods with the proportionable system error of 0.35%, extra system error of 0.39% and statistics error of 0.21%. Then researchers use this method to detect samples of boron nitride. The relative standard deviation and relative accuracy are 0.27% and 0.28% respectively, which comply with the limits of acid-base titration. Therefore, the determination of B2O3 in boron nitride by volumetric titration method is feasible.

Determination of B2O3 in Boron Nitride by Volumetric Titration