Jinmei WANG, Xufeng LIU, Peichao ZHENG, Guanghui CHEN, Shaojian LIU, Gang LI, Zhi YANG, Zhicheng SUN. Design of compact laser⁃induced breakdown spectroscopy instrument[J]. Chinese Journal of Quantum Electronics, 2024, 41(3): 437
- Chinese Journal of Quantum Electronics
- Vol. 41, Issue 3, 437 (2024)
Fig. 1. Laser-induced breakdown spectroscopy detection system. (a) Schematic of the internal structure; (b) Physical diagram
Fig. 2. Spectrum of standard sample. (a) 200-550 nm band; (b) 288.0-296.9 nm band
Fig. 3. Effect of delay time on the spectral intensity and signal-to-background ratio. (a) Si(I) 288.158 nm; (b) C(II) 296.786 nm
Fig. 4. Effect of defocus amount on the spectral intensity and signal-to-background ratio. (a) Si(I) 288.158 nm; (b) C(II) 296.786 nm
Fig. 5. Effect of laser energy on the spectral intensity and signal-to-background ratio. (a) Si(I) 288.158 nm; (b) C(II) 296.786 nm
Fig. 6. Calibration curves obtained by internal standard method.(a) Si(I) 288.158 nm/ Fe(II) 274.932 nm; (b) C(II) 296.786 nm/ Fe(II) 288.076 nm
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Table 1. Element content of each sample
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Table 2. Prediction results of element content
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