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合金中测定硼大多数采用分光光度法,如:次甲基蓝—二氯乙烷萃取比色,石英蒸馏器蒸馏分离硼姜黄素比色等法均要求分离,条件较严,且只适用于测定微量硼。本文研究了在硫酸介质中,胭脂红和硼形成紫红色络合物,在高碳,高硅和大量其它离子共存条件下,直接测定高量硼获满意结果。本方法简单快速,不仅适用于钻基合金,同时也适用于镍基合金小0.5～3％高量硼的测定。
Most of the determination of boron alloy spectrophotometry, such as: Methylene blue - dichloroethane extraction colorimetric distillation distillation of bismuth curcumin distillation and other methods are required separation, the more stringent conditions, and only applies to Determination of trace boron. In this paper, we studied the formation of purplish red complex between carmine and boron in sulfuric acid medium, and the direct determination of high boron content in high carbon, high silicon and a large amount of other ions was satisfactory. The method is simple and fast, not only suitable for drilling base alloy, but also suitable for the determination of high boron content of 0.5-3% of nickel base alloy.