Xiao-mei LIN, Si-yu TAO, Jing-jun LIN, Yu-tao HUANG, Chang-jin CHE, Hao-ran SUN. Study on Improving the Stability of Heavy Metal Cu in Soil by Image Optimization[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3282
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 10, 3282 (2020)
Fig. 1. System schematic diagram
Fig. 2. Soil sample
Fig. 3. Analytical spectra of Cu elements
Fig. 4. Spectrogram after noise reduction
Fig. 5. Effect of delay time on spectral signal intensity and SBR of spectrum lines
Fig. 6. Changes of plasma image with different integral delays
Fig. 7. Effect of delay time on the area of plasma image
Fig. 8. Six sets of plasma images selected by image optimization model
Fig. 9. RSD with and without optimization models under different soil concentrations
Fig. 10. Calibration curves of Cu elements with or without optimizing conditions
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Table 1. Content of Cu in Soil Samples (mg·kg-1)
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