C-878定碳仪在铀铌合金中碳含量测定的应用
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- 英文论文题名：Application of carbon analyzer c-878 in carbon determination in uranium-niobium alloy bsorption
- 论文作者：纪新华 ; 李英秋 ; 王林 ; 吴梅 ; 米俊
- 英文论文作者：Ji Xihua ; Li Yingqiu ; Wang Lin ; Wu Me ; Mi Jun ; Institute of Material ; China Academy of Engineering Physics
- 年：2014
- 作者机构：中国工程物理研究院;
- 论文关键词：定碳仪 ; 铀铌合金 ; 红外吸收
- 英文论文关键词：carbon analyzer ; U-Nb alloy ; IR absorption
- 会议召开时间：2014-08-13
- 会议录名称：第十七届全国核电子学与核探测技术学术年会论文集
- 语种：中文
- 分类号：TG115.3
- 学会代码：HDZX
- 会议名称：第十七届全国核电子学与核探测技术学术年会
- 会议地点：中国甘肃兰州
- 主办单位：中国电子学会、中国核学会核电子学与核探测技术分会
- 学会名称：中国电子学会核电子学与核探测技术分会
- 页数：5
- 文件大小：642k
- 原文格式：D
- 会议级别：全国
摘要
本文应用C-878红外定碳仪,对铀铌合金中碳进行了测定,考察了碳标准和铀铌样品在不同温度下对碳释放的影响。对铀铌样品的测量结果与LECO CS-444红外仪测量的结果做了比对实验,对于铀合金含碳为50μg/g,其相对标准不确定度<10%,加入标准的回收率为92%~106%;含碳为180μg/g,其相对标准不确定度<5%,加入标准的回收率为90%~105%。方法的测量下限为9μg/g。测定标准样品在1.25μg~12.5μg范围内,线性相关系数r为0.99986。
Carbon in U-Nb alloy was determined by the infrared carbon analyzer C-878.The effect of temperature on the releasing rate of carbon both in the standard and U-Nb alloy samples ware performed. The RSD is less than 10%, the recovery is between 92% and 106% respectively when carbon content in U-Nb alloy is about 50μg/g. The RSD is less than 5%, the recovery is between 90% and 105% respectively when carbon content in U-Nb alloy is about 180μg/g. The determination lower limit is 9μg/g. When the quantity of the standard samples ranges from 1.25μg~12.5μg,the linearity correlation coefficient is 0.99986.The results determined by are accord well with that by Leco CS-444.
Carbon in U-Nb alloy was determined by the infrared carbon analyzer C-878.The effect of temperature on the releasing rate of carbon both in the standard and U-Nb alloy samples ware performed. The RSD is less than 10%, the recovery is between 92% and 106% respectively when carbon content in U-Nb alloy is about 50μg/g. The RSD is less than 5%, the recovery is between 90% and 105% respectively when carbon content in U-Nb alloy is about 180μg/g. The determination lower limit is 9μg/g. When the quantity of the standard samples ranges from 1.25μg~12.5μg,the linearity correlation coefficient is 0.99986.The results determined by are accord well with that by Leco CS-444.
引文
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[4]邹乐西,吴伦强,向方寿,王林.铀铌合金中微量碳的测定[J].分析实验室,2001,20(3):79-81.
[5]赵藻藩,周性尧,张悟铭,赵文宽.仪器分析[M].高等教育出版社,1990.