Shencheng Shi, Mengyun Hu, Qingshan Zhang, Heping Zeng. Plasma Grating Induced Breakdown Spectroscopic Detection of Heavy Metal Elements in Soil[J]. Chinese Journal of Lasers, 2022, 49(13): 1311002
- Chinese Journal of Lasers
- Vol. 49, Issue 13, 1311002 (2022)
Fig. 1. Plasma-grating-induced breakdown spectroscopy system. (a) Schematic of experimental setup; (b) schematic of spectrum acquisition timing
Fig. 2. Sample surface monitoring. (a) Schematic of monitoring principle; (b) CCD image of sample in overlapping area of two beams; (c) CCD image of sample outside overlapping area of two beams
Fig. 3. Spectral comparison between FIBS and GIBS systems
Fig. 4. Relationship between enhancement factor and inter-pulse delay
Fig. 5. Si I 288.2 nm spectral line intensity versus sample position in different systems. (a) FIBS system; (b) GIBS system
Fig. 6. Establishment of Cr element calibration curve in different systems. (a) FIBS system; (b) GIBS system
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Table 1. Comparison of calibration curve parameters
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