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在制备热压碳化硅陶瓷材料时,加入某些微量元素作为添加物是为了提高其密度获得良好的综合性能的重要措施。硼是添加物之一。该材料属于难熔化合物,必须用强碱加过氧化钠熔融分解。按照常规测定硼的方法,可用碱分离酸碱中和法,但是,由于有大量硅的存在,形成硅酸根,造成严重正干扰。姜黄素直接光度法测定硼是一个灵敏度较高的方法(可测
In the preparation of hot pressed silicon carbide ceramic materials, the addition of certain trace elements as additives is to increase its density to obtain a good overall performance of the important measures. Boron is one of the additives. The material is refractory compounds, must use strong base plus sodium peroxide melting decomposition. According to the conventional method for the determination of boron, the acid-base neutralization method can be used for alkali separation. However, due to the presence of a large amount of silicon, silicates are formed, causing serious positive interference. Curcumin Direct Spectrophotometric Determination of Boron is a high sensitivity method (measurable