Determination of carbon content in steel using laser-induced breakdown spectroscopy
作者： J. A. Aguilera , C. Aragón , J. Campos
关键词: Calibration curve 、 Spectroscopy 、 Plasma 、 Laser 、 Time-resolved spectroscopy 、 Carbon 、 Materials science 、 Analytical chemistry 、 Detection limit 、 Laser-induced breakdown spectroscopy
摘要: Laser-induced breakdown spectroscopy has been used to determine carbon content in steel. The plasma was formed by focusing a Nd:YAG laser on the sample surface. With use of time-resolved and generation nitrogen atmosphere, precision 1.6% detection limit 65 ppm have obtained. These values are similar those other accurate conventional techniques. Matrix effects for studied steels reduced small slope difference between calibration curves stainless nonstainless steels.
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