Detection of Chromium Content in Edible Vegetable Oil with DP-LIBS Combined with LSSVM and CARS Methods

Wu Yiqing; Sun Tong; Liu Jin; Gan Lanping; Liu Muhua

doi:10.3788/LOP55.013005

[1] Gu Y H, Zhao N J, Ma M J et al. Rapid measurement of particle ratio in soil by laser induced breakdown spectroscopy[J]. Chinese Journal of Lasers, 42, 1115002(2015).

[2] Lee Y, Oh S W, Han S H. Laser-induced breakdown spectroscopy (LIBS) of heavy metal ions at the sub-parts per million level in water[J]. Applied Spectroscopy, 66, 1385-1396(2012).

[3] Hu L, Zhao N J, Liu W Q et al. Quantitative analysis of Pb in water based on multivariate calibration with LIBS[J]. Acta Optica Sinica, 35, 0630001(2015).

[4] Yao S, Lu J, Dong M et al. Extracting coal ash content from laser-induced breakdown spectroscopy (LIBS) spectra by multivariate analysis[J]. Applied Spectroscopy, 65, 1197-1201(2011).

[5] Kashiwakura S, Wagatsuma K. Characteristics of the calibration curves of copper for therapid sorting of steel scrap by means of laser-induced breakdown spectroscopy under ambient air atmospheres[J]. Analytical Sciences, 29, 1159-1164(2013).

[6] Yang Y L, Wang P, Ma C H. Quantitative analysis of Mn element in liquid steel by LIBS based on particle swarm optimized support vector machine[J]. Laser & Optoelectronics Process, 52, 073004(2015).

[7] Kim G, Kwak J, Choi J et al. Detection of nutrient elements and contamination by pesticides in spinach and rice samples using laser-induced breakdown spectroscopy (LIBS)[J]. Journal of Agricultural & Food Chemistry, 60, 718-724(2012).

[8] Wu Y Q, Sun T, Liu X H et al. Detection of chromium content in soybean oil by laser-induced breakdown spectroscopy[J]. Laser & Optoelectronics Progress, 53, 043001(2016).

[9] Liu X N, Zhang Q, Shi X Y et al. Rapid elemental analysis and classification of resin herbs based on LIBS technique[J]. China Journal of Traditional Chinese Medicine and Pharmacy, 30, 1610-1614(2015).

[10] Zhu C G, Qi H X, Zhang J et al. Matrix correction method used for quantitative analysis of laser induced breakdown spectroscopy[J]. Journal of Infrared and Millimeter Waves, 29, 283-287(2010).

[11] Yao S, Zhao J, Xu J et al. Optimizing the binder percentage to reduce the matrix effects for the LIBS analysis of carbon in coal[J]. Journal of Analytical Atomic Spectrometry, 32, 766-772(2017).

[12] Zheng L, Niu S, Khan A Q et al. Comparative study of the matrix effect in Cl analysis with laser-induced breakdown spectroscopy in a pellet or in a dried solution layer on a metallic target[J]. Spectrochimica Acta Part B, 118, 66-71(2016).

[13] Meng D S, Zhao N J, Ma M J et al. Quantitative detection of Cu in different types of soils using laser induced breakdown spectroscopy combined with artificial neural network[J]. Journal of Optoelectronics·Laser, 26, 1984-1989(2015).

[14] Gu Y H, Zhao N J, Ma M J et al. Quantitative analysis of Cr in soil with laser induced breakdown spectroscopy combined with multivariate calibration[J]. Spectroscopy and Spectral Analysis, 36, 1893-1898(2016).

[15] Pandhija S, Rai N K, Pathak A K et al. Calibration curve with improved limit of detection for cadmium in soil: an approach to minimize the matrix effect in laser-induced breakdown spectroscopic analysis[J]. Spectroscopy Letters, 47, 579-589(2014).

[16] Wu Y Q, Liu J, Mo X X et al. Quantitative analysis of chromium in vegetable oil based on double pulse-laser-induced breakdown spectroscopy and least squares support vector machine[J]. Chinese Journal of Analytical Chemistry, 44, 1919-1926(2016).

[17] Wu Y, Liu J, Mo X et al. Quantitative analysis of chromium in vegetable oil by collinear double pulse laser-induced breakdown spectroscopy combined with dual-line internal standard method[J]. Acta Physica Sinica, 66, 054206(2017).

[18] Chen Z, Li H, Liu M et al. Fast and sensitive trace metal analysis in aqueous solutions by laser-induced breakdown spectroscopy using wood slice substrates[J]. Spectrochimica Acta Part B, 63, 64-68(2008).

[19] Li H, Liang Y, Xu Q et al. Key wavelengths screening using competitive adaptive reweighted sampling method for multivariate calibration[J]. Analytica Chimica Acta, 648, 77-84(2009).

[20] Gu Y P, Zhao W J, Wu Z S. Least squares support vector machine algorithm[J]. Journal of Tsinghua University (Science and Technology Edition), 50, 1063-1066(2010).

[21] Mousavi S J, Farsani M H. Darbani S M R, et al. Identification of atomic lines and molecular bands of benzene and carbon disulfide liquids by using LIBS[J]. Applied Optics, 54, 1713-1720(2015).

[22] Liu M H[M]. Technology and application of optical nondestructive inspecting quality and safety for agricultural products, 70-71(2011).