摘要
火焰光度法是测试碱含量常用的基准方法,仪器测试氧化钾和氧化钠标准溶液后得到的工作曲线直接影响了后续样品测试的准确性。作者针对FP650型火焰光度计,在测试工作曲线状态不理想的情况下分析原因,对工作曲线采取了合理的校正方式后,再计算氧化钾和氧化钠含量的计算,并对多个基准水泥进行测试来验算校正后测试的准确性。结果表明,通过对工作曲线进行校正后,得到的氧化钾和氧化钠含量更接近基准值。最后,作者总结了水泥氧化钾和氧化钠含量测试的控制要点,为提高水泥中碱含量测试的准确性提供参考。
Flame photometry is a commonly used benchmark method for testing alkali content. The working curve obtained after the instrument measures potassium oxide and sodium oxide standard solutions directly affects the accuracy of subsequent sample testing. For the FP650 flame photometer, the author analyzes the reasons when the test working curve is not ideal, and after taking a reasonable correction method to the working curve, calculates the potassium oxide and sodium oxide content, and performs calculations on multiple benchmark cements. Test to verify the accuracy of the test after calibration. The results show that after the calibration of the working curve, the potassium oxide and sodium oxide content obtained are closer to the reference value. Finally, the author summarized the control points of the potassium oxide and sodium oxide content test in cement, and provided a reference for improving the accuracy of the alkali content test in cement.
作者
许艳平
宋平娟
XU Yanping;SONG Pingjuan(CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou 510230,China;Guangzhou Harbor Engineering Quality Inspection Co.,Ltd.,Guangzhou 510230,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S02期1059-1063,共5页
Building Structure
关键词
水泥
碱含量
火焰光度计
工作曲线
校正曲线
cement
alkalicontent
flamephotometry
workingcurve
calibrationcurve
作者简介
许艳平,硕士,工程师,Email:xyanping1@cccc4.com。
