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金属学报  1959, Vol. 4 Issue (1): 75-80    
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铝火花法测定钢铁中的硼
王鸿漳
中国科学院金属研究所
DETERMINATION OF BORON IN STEEL AND IRON BY THE ALUMINUM SPARK METHOD
WANG HONG-JANG Institute of Metal Research; Anademia Sinica
引用本文:

王鸿漳. 铝火花法测定钢铁中的硼[J]. 金属学报, 1959, 4(1): 75-80.
. DETERMINATION OF BORON IN STEEL AND IRON BY THE ALUMINUM SPARK METHOD[J]. Acta Metall Sin, 1959, 4(1): 75-80.

全文: PDF(489 KB)  
摘要: 铝火花法测定钢铁中的硼具有较高的灵敏度和精确度。它是用过氧酸溶解样品,再加一定量的氢氧化钠溶液,然后滴在铝电极上蒸干。用火花光源在中型光谱仪上摄谱。不用分离铁的基体直接利用硼线2496.778A进行硼的定量分析,所分析硼的含量是从0.005%到1.0%。
Abstract:Determination of boron in steel and iron by the aluminum spark method possesses highersensitivity and precision. It is not necessary to separate iron from the sample. The sample isdissolved with perchloric acid, and into the perchlorate solution is added a certain amount ofNaOH solution. The standards are prepared from synthetic solutions with different proportionsof boric acid added. Electrodes are made from pure aluminum 8 mm in diameter and 5-10 cm in length. Theends of the electrodes should be machined flat and the sharp edges should be removed by light cham-fering to reduce the tendency of sparks to strike these sharp edges. Drops of solutions are placed onthe surface of the electrode by means of a micropipet calibrated to deliver 0.05 ml. With a con-trol spark source and medium spectrograph we can analyze boron in the range from 0.005% to1.0% by the line B 2496.778A.
收稿日期: 1959-01-18     
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