X射线荧光光谱法测定间苯二胺中的总氯
Determination of total chlorine in m-phenylenediamine by X-ray fluorescence spectrometry
濮杨 1徐泽锋 1程羽君 1吴建江 1顾奇龙 2王建刚 1钱东升1
作者信息
- 1. 绍兴市质量技术监督检测院,浙江绍兴 312000
- 2. 浙江安诺芳胺化学品有限公司,浙江上虞 312369
- 折叠
摘要
为有效监控间苯二胺生产过程中的杂质氯,建立一种借助X射线荧光光谱法快速、无损地测定间苯二胺中总氯的方法.在30～1 051 mg/kg区间内,氯强度值与其对应含量呈线性,相关系数大于0.999.准确度结果显示,在20、100、800 mg/kg 3种含量梯度下,各加标回收率均大于90%.精密度结果显示,相对标准偏差小于1.0%,重复性较好.最后经4批次实际间苯二胺样品测试,验证了该方法的实际可操作性.
Abstract
In order to effectively monitor the impurity chlorine in the production of m-phenylenediamine,a rapid and nondestructive method for the determination of total chlorine in m-phenylenediamine by X-ray flu-orescence spectrometry was established.Within the range of 30-1 051 mg/kg,the chlorine intensity value was linear with its corresponding content,with a correlation coefficient greater than 0.999.The accuracy re-sults showed that under three mass fraction gradients of 20,100,and 800 mg/kg,the recovery rates of each spiked substance were all greater than 90%.The precision results showed that the relative standard deviation was less than 1.0%and the repeatability was good.Finally,the actual operability of this method was verified through testing of 4 batches of actual meta phenylenediamine samples.
关键词
间苯二胺/X射线荧光光谱法/总氯Key words
m-phenylenediamine/X-ray fluorescence spectrometry/total chlorine引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据