Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1730001(2021)
Cadmium Detection in Rice Using Laser-Induced Breakdown Spectroscopy Combined with Film Preparation
Figures & Tables(10)
Fig. 2. Relationship between spectral intensity of CdⅡ214.44 nm and SNR with delay time. (a) Tablet sample; (b) film sample
Fig. 3. Relationship between the spectral intensity of CdⅡ214.44 nm and the SNR with laser energy. (a) Tablet sample; (b) film sample
Fig. 4. Relationship between spectral intensity of CdⅡ214.44 nm and SiⅠ243.51 nm of film sample and SiⅠ243.51 nm of clean slide with laser energy
Fig. 7. Fitting curves of Boltzmann plane method. (a) Tablet sample ; (b) film sample
Table 1. Reference content of Cd element in rice powder samples
View tableTable 1. Reference content of Cd element in rice powder samples
Sample No. 1 2 3 4 5 6 7 Reference content /（μg·g-1） 5.80 10.87 29.62 42.93 65.45 71.98 96.72
Table 2. Comparison of reference value and predicted value of film sample prediction set
View tableTable 2. Comparison of reference value and predicted value of film sample prediction set
GFAAS detection value /（μg·g-1） LIBS predicted value /（μg·g-1） Relative error /% 22.81 22.07 3.24 36.15 37.53 3.82 92.28 89.07 3.45
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Jinming Niu, Jingqi Lu, Yongkang Li. Cadmium Detection in Rice Using Laser-Induced Breakdown Spectroscopy Combined with Film Preparation[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1730001
Paper Information
Category: Spectroscopy
Received: Dec. 15, 2020
Accepted: Jan. 7, 2021
Published Online: Sep. 14, 2021
The Author Email: Lu Jingqi (lujingqi@whut.edu.cn)
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