01580naa a2200253 a 450000100080000000500110000800800410001902400460006010000170010624502140012326000090033752006670034665000160101365000170102965000360104665300200108265300280110265300240113070000200115470000210117470000220119570000240121777300850124121533022024-04-11       2023    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1364/JOSAB.4826192DOI1 aBABOS, D. V.  aLaser-induced breakdown spectroscopy and digital image data fusion for determination of the Al, Ca, Fe, Mg, and P in mineral fertilizerbovercome matrix effects in solid direct analysis.h[electronic resource]  c2023  aLaser-induced breakdown spectroscopy (LIBS) and digital images were evaluated in the modeling for the prediction of Al, Ca, Fe, Mg, and P contents in mineral fertilizer samples. For modeling, univariate [matrix-matching calibration (MMC)] and multivariate [multiple linear regression (MLR) using only LIBS data, and data fusion (LIBS + digital image)] calibration strategies were evaluated. The predictive capacity of the models was increased in the following order: MMC&ltMLR (LIBS) &lt data fusion. Compared with the MMC and MLR (LIBS data only), the root mean square error (data fusion) values were 17% to 80% lower, demonstrating the improvement in accuracy.  aFertilizers  aSpectroscopy  aX-ray fluorescence spectroscopy  aDigital imaging  aLaser induced breakdown  aPlasma spectroscopy1 aRAMOS, J. F. K.1 aFRANCISCO, G. C.1 aBENITES, V. de M.1 aMILORI, D. M. B. P.  tJournal of the Optical Society of America Bgv. 40, n. 3, p. 654-660, Mar. 2023.