管式炉加热-红外吸收法测定铀金属中碳

doi:10.13228/j.boyuan.issn1000-7571.009407

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (845 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要称取100 mg处理后试样,选取加热温度为850 ℃,建立了管式炉加热红外吸收法测定铀金属中微量碳的方法。试验表明:将金属铀切屑试样用硝酸(1+1)加热至微沸并保持2 min,取出后再依次用水、丙酮、无水乙醇漂洗可有效去除金属铀切屑样品表面的碳沾污。以蔗糖作为校准标样,碳量在0～12.5 μg之间线性相关系数(r)为0.999 8。方法空白值为2.4 μg/g,测定下限为5 μg/g。按照实验方法对铀金属材料中碳进行测定,结果的相对标准偏差(RSD, n=3)为4.3%～6.1%,加标回收率为100%。应用于铀金属材料中碳含量的测定,结果与高频燃烧-红外吸收法一致。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李英秋
	纪新华
	吴梅
	米俊

关键词 ：管式炉加热, 红外吸收法, 铀金属, 碳

Abstract：A tubular furnace heating-infrared absorption method for the determination of micro carbon in uranium metals was established with 100 mg of pre-treated sample at 850 ℃. Experiment showed that: after the uranium metal sample chips were heated to micro-boiling for 2 min with HNO₃(1+1) and rinsed by water, acetone and absolute ethyl alcohol in sequence, the carbon contamination on the sample surface could be effectively eliminated. With sucrose as calibration sample, the linear correlation coefficient (r) was 0.999 8 with carbon amount in the range of 0-12.5 μg. The blank value was 2.4 μg/g, and the limit of quantification was 5 μg/g. When carbon in uranium metal materials was determined by proposed method, the relative standard deviation (RSD, n=3) was 4.3%-6.1% and the standard addition recovery was 100%. The determination results were consistent with those of high frequency combustion-infrared absorption method.

Key words： tubular furnace heating-infrared absorption uranium metal carbon

收稿日期: 2014-06-02

作者简介: 李英秋(1966-),男,高级工程师,从事金属材料分析工作;E-mail:lyq6665@163.com

引用本文:

李英秋, 纪新华, 吴梅, 米俊. 管式炉加热-红外吸收法测定铀金属中碳[J]. 冶金分析, 2015, 35(1): 59-62. LI Ying-qiu, JI Xin-hua, WU Mei, MI Jun. Determination of carbon in uranium metals by tubular furnace heating-infrared absorption method. , 2015, 35(1): 59-62.

链接本文:

http://47.93.29.245/Jweb_yjfx/CN/10.13228/j.boyuan.issn1000-7571.009407 或 http://47.93.29.245/Jweb_yjfx/CN/Y2015/V35/I1/59

[1]	李兰群,尹艳清.高频感应燃烧-红外吸收法测定复合碳硅锰铁合金中碳和硫[J]. 冶金分析(Metallurgical Analysis),2010,30(6):62-65.
[2]	张庆波,李树华,刘丽,等.高频红外吸收法测定钛合金中的碳[J]. 光谱实验室(Chinese Journal of Spectroscopy Laboratory),2004,21(5):992-995.
[3]	杨丽,张庸,张继民,等.高频燃烧-红外吸收法测定钎料中低碳[J]. 冶金分析(Metallurgical Analysis),2013,33(9):28-31.
[4]	中华人民共和国国家质量监督检验检疫总局.GB/T 20126-2006/ISO 15349-2:1999非合金钢低碳含量的测定:第2部分感应炉(经预加热)内燃烧后红外吸收法[S]. 北京:中国标准出版社,2006.
[5]	NTIS No. DE90008859 Determination of carbon in uranium metal using the Leco CS-244 carbon and sulfur determinator[R]. HDM 1989-8.
[6]	邹乐西,吴伦强,王林,等.铀铌合金中微量碳的测定[J]. 分析实验室(Chinese Journal of Analytical Laboratory),2001,20(3):79-81.
[7]	ASTM C1408-98 Determination of total carbon in uranium oxide powder by direct combustion infrared detection method[S].
[8]	GJB 3869-1999 铀金属分析方法201 高频感应炉燃烧-红外吸收法测定碳量[S].
[9]	王玉兴,崔秋红.钢中超低碳的测定[J]. 冶金分析 (Metallurgical Analysis),1995,15(5):31-34.
[10]	原怀保,李月红.管式炉加热-红外吸收法测定内螺纹铜管内表面残余碳[J]. 冶金分析(Metallurgical Analysis),2012,32(6):62-65.
[11]	武素茹,李权斌,王虹,等. 管式炉直接加热-红外吸收光谱法同时测定硅铁中碳和硫量[J]. 理化检验:化学分册(Physical Testing and Chemical Analysis Part B: Chemical Analysis),2012,48(7):820-822.
[12]	程坚平,徐汾兰. 管式炉加热红外吸收法测定脱氧剂中碳化硅及游离碳[J]. 冶金分析(Metallurgical Analysis),2007,27(8):39-41.