Yekun Liu, Xiaojian Hao, Yanwei Yang, Peng Sun. Analysis of Ba Content in Soil Based on Cavity Confinement LIBS Combined with Multivariate Regression[J]. Laser & Optoelectronics Progress, 2022, 59(5): 0530005
- Laser & Optoelectronics Progress
- Vol. 59, Issue 5, 0530005 (2022)
Fig. 1. Cavity confinement LIBS experimental device diagram
Fig. 2. Comparison diagram of Ba element spectra under traditional LIBS and CC-LIBS
Fig. 3. Spectral intensity of Ba Ⅱ 495.709 nm change with delay time under two LIBS conditions
Fig. 4. SNR of Ba element under different conditions
Fig. 5. Calibration curves of Ba element by spectral line intensity integration method. (a) LIBS; (b) CC-LIBS
Fig. 6. Cumulative contribution rate of principal components
Fig. 7. Calibration curves of Ba element with multivariate analysis method. (a) PCR; (b) ANN
|
Table 1. Contents of Ba element in soil samples
|
Table 2. Prediction results of Ba element content in soil samples by spectral line integration method
|
Table 3. LOD of Ba element in soil samples
|
Table 4. Prediction results of Ba element content in soil samples by multivariate analysis method
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