Xiao-mei LIN, Hao-ran SUN, Yu-ting XU, Jing-jun LIN, Yue WANG, Zhen-xing WANG, Xun GAO. Classification of Changbai Mountains Pork Based on Laser-Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(1): 299
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 1, 299 (2021)
Fig. 1. Sample
1—10 are the laser operating points
1—10 are the laser operating points
Fig. 2. LIBS experimental setup
Fig. 3. LIBS spectra of pork muscle and fat
(a): Muscle; (b): Fat
(a): Muscle; (b): Fat
Fig. 4. LIBS spectra of different parts of pork
(a): Hind leg; (b): Streaky pork; (c): Tenderloin;(d): Plum blossom; (e): Front leg
(a): Hind leg; (b): Streaky pork; (c): Tenderloin;(d): Plum blossom; (e): Front leg
Fig. 5. Distribution of element intensity ratio for different parts of pork
(a):I Al 422 nm/I Ca 393 nm; (b): I Mg 280 nm/I Ca 393 nm;(c): I K 770 nm/I Ca 393 nm; (d): I Na 589 nm/I Ca 393 nm
(a):
Fig. 6. Spectral principal component scores of 5 types of pork
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Table 1. Confidence intervals of Na/Ca and K/Ca(1-α)=90%
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