摘要
凯氏定氮法是测定橡胶中氮含量的常规分析方法。若采用自动定氮仪测定橡胶中氮含量,与凯氏法相比,同样具有准确度和精密度高的优点,而且自动化程度高,样品无须转移,能简便、快速、准确地测定大批量橡胶中的氮含量。
The Kjeldahl is a general analysis method for determining nitrogen in rubber. This article presents the method for determination of nitrogen in rubber by auto-nitrogenmetric analyzer. Comparing with chemical analysis, the accuracy and precision to test nitrogen content by instrumentation analysis is as good as the Kjeldah]. In addition, the instrumentation analysis has advantages of high automatic control degree, without transferring of samples. So, a simple, fast and accurate analysis method is confirmed for detemination of nitrogen contents in batch samples of rubber by auto-nitrogenmetric analyzer.
出处
《世界橡胶工业》
2007年第5期39-41,共3页
World Rubber Industry
关键词
自动定氮仪
凯氏定氮法
橡胶
氮
anto-nitrogenmetric analyzer
Kjeldahl
rubber
nitrogen
