摘要
使用元素分析仪采用一步法测定煤中碳、氢、氮、硫含量,将其测定结果与采用国际标准方法所测得的数据进行比较,通过数理统计分析该2种方法在测定煤中碳氢氮硫时是否具有差异性。分析结果表明:采用一步法和国际法在测定煤中碳、氢、氮、硫含量时,其重复性均较好,且测试精密度和准确度均无显著性差异。
The content of carbon,hydrogen,nitrogen and sulfur in coal were determined by one step method using the element analyzer.The data were compared with that measured by the international standard method,and the difference of two methods was analyzed through mathematical statistics.It was shown that in the determination of carbon,hydrogen,nitrogen and sulfur content in coal,the repeatability was good,and there was no significant difference in the test precision and accuracy between the two methods.
出处
《煤质技术》
2016年第5期50-52,58,共4页
Coal Quality Technology
关键词
一步法
碳
氢
氮
硫
测定结果
重复性
精密度
准确度
one step method
carbon
hydrogen
nitrogen
sulfur
data
repeatability
test precision
accuracy
