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来源机构: Optics Letters
来源目录: Optics Letters
发布日期: Oct 17, 2021
资源类型: 262.41KB
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Correction method for the influence of environmental factors on laser-induced breakdown spectroscopy

× Tables (5) . Table 1. . Content (wt. %) of Each Element in the Modeling and Prediction Groups Modeling Group Prediction Group Element Lower Limit (%) Upper Limit (%) Sample 1 (%) Sample 2 (%) Cr . 10.30 . 15.52 . 15.30 . 11.54 . Mo . 3.18 . 5.55 . 3.00 . 4.41 . Al . 4.83 . 9.44 . 5.20 . 4.51 . Fe . 0.17 . 0.96 . 1.06 . 0.66 . Nb . 1.23 . 3.30 . 3.02 . 1.72 . Ti . 0.29 . 1.82 . 1.25 . 1.72 . Mn . 0.22 . 1.08 . 0.48 . 0.90 . Ni . 63.27 . 70.36 . 65.92 . 71.76 . Table 2. . MLISC Models of Each Element and R 2 in the Calibration Environment Element Analysis Spectral Pair (nm) Internal Standard Spectral Pair (nm) R 2 Cr . ( I I ) 267.716 + ( I ) 427.48 + ( I ) 520.844 . ( I ) 440.154 + ( I I ) 241.614 . 0.9652 . Mo . ( I I ) 265.335 + ( I I ) 268.414 + ( I I ) 270.142 . ( I I ) 266.525 + ( I ) 274.675 . 0.7600 . Al . ( I I ) 394.641 . ( I ) 339.299 + ( I ) 478.654 . 0.9096 . Fe . ( I I ) 273.955 + ( I ) 251.083 + ( I I ) 259.94 . ( I I ) 243.789 + ( I ) 274.675 . 0.9716 . Nb . ( I ) 407.973 . ( I ) 440.154 + ( I ) 498.413 + ( I ) 511.539 . 0.9541 . Ti . ( I ) 334.853 + ( I ) 453.324 . ( I I ) 231.604 + ( I ) 440.154 . 0.9912 . Mn . ( I I ) 257.61 . ( I ) 299.446 + ( I ) 356.637 . 0.9652 . Table 3. . RMSEP (wt. %) of the Prediction Group in Two Environments Before Correction Element Calibration Environment (%) Application Environment (%) Cr . 0.21 . 9.93 . Mo . 0.25 . 1.45 . Al . 0.20 . 9.28 . Fe . 0.07 . 0.88 . Nb . 0.17 . 3.40 . Ti . 0.09 . 1.02 . Mn . 0.01 . 0.44 . Table 4. . Average RMSEP of the Prediction Group in the Application Environment After Correction Average RMSEP (wt. %) Element N = 1 N = 2 N = 3 N = 4 Cr . 0.79 . 0.66 . 0.74 . 0.41 . Mo . 0.81 . 0.79 . 0.44 . 0.39 . Al . 1.12 . 1.10 . 0.74 . 0.49 . Fe . 0.20 . 0.14 . 0.14 . 0.12 . Nb . 0.50 . 0.42 . 0.46 . 0.44 . Ti . 0.38 . 0.31 . 0.23 . 0.14 . Mn . 0.20 . 0.17 . 0.10 . 0.09 . Table 5. . Average RMSEP of the Prediction Group When the Calibration Models Were Constructed Directly in the Application Environment Average RMSEP (wt. %) Element N = 2 N = 3 N = 4 Cr . 2.85 . 0.94 . 0.49 . Mo . 2.67 . 0.78 . 0.51 . Al . 1.95 . 0.75 . 0.50 . Fe . 0.38 . 0.15 . 0.13 . Nb . 0.73 . 0.49 . 0.45 . Ti . 0.60 . 0.24 . 0.15 . Mn . 0.26 . 0.10 . 0.09 . Close .

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