铬铁中铬的电感耦合等离子体发射光谱法测定

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摘要提出了一种电感耦合等离子体发射光谱法（ICP-OES）快速测定铬铁中主成分铬含量的方法。采用碳酸钠和过氧化钠在锆坩埚内熔融样品, 硫酸浸取熔块, 根据采集多条铬谱线数据, 以稳定的铬谱线作为分析线, 采用漂移校正和标准物质校正技术, 有效地解决了铬铁中主成分铬含量的ICP-OES测定。对高碳铬铁、低碳铬铁、微碳铬铁、炭素铬铁的标准物质样品中铬进行测定, 测定值和认定值相差均小于0.3%(质量分数), 测定结果的相对标准偏差（n=7）在0.13%～0.43%之间。

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	鲍惠君
	应海松
	金献忠

关键词 ：电感耦合等离子体发射光谱法（ICP-OES）, 铬铁, 主成分, 铬, 校正技术

Abstract：A method was proposed for fast determination of major component chromium in ferrochromium by inductively coupled plasma optical emission spectrometry(ICP-OES). Sodium carbonate and sodium peroxide were used to melt the chromium iron sample in zirconium crucible and sulfide acid was used for leaching the melt. According to the various chromium lines collected, some stable lines of them were used as analysis line.The ICP-OES determination of major component chromium in ferrochromium was effectively solved by drift correction and standard material correction technology. The certified standard materials including high carbon ferrochromium, low carbon errochromium, micro carbon ferrochromium and carbon ferrochromium were analyzed. The difference between the testing value and the certified value was less than 0.3% and the RSD (n=7) was 0.13%-0.43%.

Key words： inductively coupled plasma optical emission spectrometry ferrochromium major component chromium correction technique

收稿日期: 2013-05-31

ZTFLH:

O657.31

基金资助:国家质检总局科研项目（2012IK043）资助

通讯作者: 金献忠（1968-）,男,高级工程师；E-mail:jinxz@nbciq.gov.cn E-mail: bhj_222@163com

作者简介: 鲍惠君（1981-），女，工程师，主要从事原子光谱分析工作

引用本文:

鲍惠君，应海松，金献忠. 铬铁中铬的电感耦合等离子体发射光谱法测定[J]. 冶金分析, 2013, 33(5): 50-54. BAO Hui-jun, YING Hai-song, JIN Xian-zhong. Determination of chromium in ferrochromium by inductively coupled plasma optical emission spectrometry. , 2013, 33(5): 50-54.

链接本文:

http://47.93.29.245/Jweb_yjfx/CN/ 或 http://47.93.29.245/Jweb_yjfx/CN/Y2013/V33/I5/50


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