| 辉光放电原子发射光谱法测定钢中超低碳含量 |
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| 引用本文： | 梁峙,周桂海,吴小红,何晓丽.辉光放电原子发射光谱法测定钢中超低碳含量[J].现代仪器,2012,18(2):72-74. |
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| 作者姓名： | 梁峙 周桂海 吴小红 何晓丽 |
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| 作者单位： | 1. 南京市产品质量监督检验院 南京210028
2. 上海梅山钢铁股份有限公司技术中心 南京210039 |
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| 摘 要： | 通过对辉光放电原子发射光谱法分析钢中超低碳光谱行为研究,考察样品制备方法、放电电压、电流、预溅射时间和分析时间对光谱强度和稳定性的影响,建立辉光放电原子发射光谱法测定钢中超低碳分析方法。结果表明,以波长为156.143nm和249.326nm的谱线分别为碳和内标铁的分析线。碳强度与内标谱线强度的比值与碳的质量分数呈线性关系,其线性回归方程I=3.7765w+0.001684,并应用此法分析l2种低合金钢标准样品,相对标准偏差(n=11)在5.1～12.3之间。
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| 关 键 词： | 辉光光谱法 超低碳 |
Analysis of ultra-low content in steel by glow-discharge atomic emission spectrometry |
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| Liang Zhi
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Zhou Guihai
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Wu Xiaohong
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He Xiaoli.Analysis of ultra-low content in steel by glow-discharge atomic emission spectrometry[J].Modern Instruments,2012,18(2):72-74. |
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| Authors: | Liang Zhi Zhou Guihai Wu Xiaohong He Xiaoli |
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| Affiliation: | 1.Nanjing Institute of Supervision & Testing on Product Quality,Nanjing 210028;2.Technical Center,Shanghai Meishan Iron and Steel Co.Ltd.,Nanjing 210039) |
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| Abstract: | Glow discharge behaviour of carbon in steel samples was studied.Through investigating influential factors,including the preparation of sample,voltage,current,preburn time and analysis time on the precision and intensity of the emission,a method for the determination of ultra-low carbon content in steel by glow-discharge AES was proposed in this paper.The results indicated that wavelengths of 156.143nm and 249.326nm were selected as analytical 1ines for C and Fe(the internal standard)respectively.Linear relationship between values of spectral line intensity ratios of carbon standard to Fe intima standard and mass fraction(in %) of carbon was obtained as shown by the linear regression equation of I=3.7765w+0.001684.The proposed method was applied to the an alysis of 12 low alloy steel standard samples,giving RSD(n=11)in the range of 5.1~12.3. |
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| Keywords: | Glow-discharge spectrometry Ultra-low carbon Analysis |
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