惰气熔融-热导法测定钒氮合金中氮

Determination of nitrogen in vanadium-nitrogen alloy by inert gas fusion-thermal conductivity method

用EMGA 620W氧氮分析仪测定钒氮合金中的氮量,采用基准试剂和标钢校准仪器,通过试验研究,找出分析的最佳条件。本方法分析结果与化学法一致,氮的加标回收率为98 0%～99 2%,相对标准偏差小于0 61%。本法用于钒氮合金中氮的测定,结果令人满意。

The determination of nitrogen in vanadium-nitrogen alloy was studied by using EMGA-620W oxygen-nitrogen analyzer.The optimal conditions for the analysis have been obtained through calibrating the apparatus by fiducial reagents and certified reference material of steel.The analytical results were consistent with those obtained by chemical method. The recovery was in the range of 98.0%～99.2%.The relative standard deviation(RSD) was less than 0.61%.The method has been applied to the determination of nitrogen ...