Determination of C, P and S in Steels by Time-resolved Atomic Emission Spectrometry
Determination of C, P and S in Steels by Time-resolved Atomic Emission Spectrometry
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时间分辨原子发射光谱法测定钢中的C、P和S
DOI：
10.2355/isijinternational.30.991
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发表时间：
1990
影响因子：
1.8
通讯作者：
Yoshiro Matsumoto
中科院分区：
文献类型：
--
作者：
Yoshiro Matsumoto
本文将时间分辨法成功地应用于钢中微量元素C、P和S的测定，利用火花放电起始50 μs后的强度，获得了以下结果：（1）分析精度高。在元素浓度为10 ppm时，C、P和S的重复性（标准偏差）分别为3.7 ppm、0.8 ppm和0.5 ppm。(2)几乎避免了光谱干扰。Ni对PI 178.29 nm线干扰的浓度校正因子为0.16×10 ~（-4），Mn对SI 180.73 nm线干扰的浓度校正因子为0.2×10 ~（-4）~ 5.8×10 ~（-4）。
The time-resolved method has been applied successfully to the determination of a trace amount of elements C, P and S in steels.The following results were obtained by the use of the intensities measured after the time of 50 μs elapsed relative to spark discharge initiation:(1) A higher precision analysis was performed. The repeatabilities with standard deviations at a elemental concentration of 10 ppm were 3.7 ppm for C, 0.8 ppm for P and 0.5 ppm for S.(2) Spectral interferences were almost avoided. The concentration correction factors were 0.16×10-4 for an interference of Ni on the PI 178.29 nm line and 0.2×10-4–5.8×10-4 for that of Mn on the SI 180.73 nm line.