Zijun Wu, Jingqi Lu, Jian Huang, Dewei Cheng. Pb Detection in Paint Coatings Through Combined Laser-Induced Breakdown Spectroscopy and CARS Variable Screening[J]. Laser & Optoelectronics Progress, 2019, 56(14): 143001
- Laser & Optoelectronics Progress
- Vol. 56, Issue 14, 143001 (2019)
Fig. 1. Diagram of LIBS experimental setup
Fig. 2. Characteristic spectra of lead in paint coatings at 308-417 nm
Fig. 3. Calibration curve of 405.78 nm analytical line of Pb I
Fig. 4. Prediction results of multiple linear regression model for correction set
Fig. 5. Screening results of wavelength variables by CARS algorithm. (a) Trend of variable number of wavelength; (b) trend of RMSECV; (c) trend of regression coefficients of various wavelength variables
Fig. 6. Distribution of wavelength variables screened by CARS algorithm
Fig. 7. Prediction results of CARS-PLS model for correction set
|
Table 1. Reference content of lead in paint coating samples
| ||||||||||||||||||||||||||||||||||||||
Table 2. Prediction result of each analysis model for sample of prediction set
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20