[1] Yang Q Q, Zhou C H. The test of potassium oxide on mixed and compound fertilizer by flame atomic absorption spectrometry[J]. Contemporary Chemical Industry, 36, 209-211(2007).
[2] Huang Y F, Deng W L, Lin W Y. Determination of potassium and available phosphorus content in compound fertilizers by ICP-AES[J]. Journal of Guangxi Academy of Sciences, 22, 435-436(2006).
[3] Song L, Zhang H, Ni X Y et al. Quantitative analysis of contents in compound fertilizer and application research using near infrared reflectance spectroscopy[J]. Spectroscopy and Spectral Analysis, 34, 73-77(2014).
[4] Kumar A, Yueh F Y, Singh J P et al. Characterization of malignant tissue cells by laser-induced breakdown spectroscopy[J]. Applied Optics, 43, 5399-5403(2004).
[5] Dong P K, Zhao S Y, Zheng K X et al. Rapid identification of ginseng origin by laser induced breakdown spectroscopy combined with neural network and support vector machine algorithm[J]. Acta Physica Sinica, 70, 040201(2021).
[6] Blevins L G, Shaddix C R, Sickafoose S M et al. Laser-induced breakdown spectroscopy at high temperatures in industrial boilers and furnaces[J]. Applied Optics, 42, 6107-6118(2003).
[7] López-Moreno C, Palanco S, Laserna J J. Remote laser-induced plasma spectrometry for elemental analysis of samples of environmental interest[J]. Journal of Analytical Atomic Spectrometry, 19, 1479-1484(2004).
[8] Yang L, Yang H B, Zhang J K et al. Review on determination of nutrients and heavy metals in soils and plants by laser-induced breakdown spectroscopy[J]. Laser & Optoelectronics Progress, 57, 230005(2020).
[9] Sha W, Li J T, Lu C P. Quantitative analysis of Mn in soil based on laser-induced breakdown spectroscopy optimization[J]. Chinese Journal of Lasers, 47, 0511001(2020).
[10] Song H S, Ma L Z, Zhu E G et al. Plastic classification and recognition by laser-induced breakdown spectroscopy and GA-BP neural network[J]. Laser & Optoelectronics Progress, 57, 153002(2020).
[12] Liao S Y, Wu X L, Li G H et al. Quantitative analysis of P in fertilizer by laser-induced breakdown spectroscopy with multivariate nonlinear method[J]. Spectroscopy and Spectral Analysis, 38, 271-275(2018).
[13] Chen K, Lu J D. Determination of potassium concentrations in compound fertilizer with laser induced breakdown spectroscopy[J]. High Power Laser and Particle Beams, 23, 293-297(2011).
[14] Lu W Y, Lu J D, Yao S C et al. Synchronization detection of nitrogen phosphorus potassium in compound fertilizer with laser induced breakdown spectroscopy[J]. Chinese Journal of Lasers, 38, 1008003(2011).
[15] Yao S C, Lu J D, Li J Y et al. Multi-elemental analysis of fertilizer using laser-induced breakdown spectroscopy coupled with partial least squares regression[J]. Journal of Analytical Atomic Spectrometry, 25, 1733-1738(2010).
[16] Zhang B H, Ling P P, Sha W et al. Univariate and multivariate analysis of phosphorus element in fertilizers using laser-induced breakdown spectroscopy[J]. Sensors, 19, 1727(2019).
[17] Zhang M, Yuan H. The PauTa criterion and rejecting the abnormal value[J]. Journal of Zhengzhou University of Technology, 18, 87-91(1997).
[18] Yang C R. Study of the spectral data processing in laser induced breakdown spectroscopy technology[D], 20-21(2014).
[19] Body D, Chadwick B L. Optimization of the spectral data processing in a LIBS simultaneous elemental analysis system[J]. Spectrochimica Acta B, 56, 725-736(2001).
[20] Wang Q Q, Huang Z W, Liu K et al. Classification of plastics with laser-induced breakdown spectroscopy based on principal component analysis and artificial neural network model[J]. Spectroscopy and Spectral Analysis, 32, 3179-3182(2012).
[21] Yang Y W, Li C, Liu S et al. Classification and identification of brands of iron ores using laser-induced breakdown spectroscopy combined with principal component analysis and artificial neural networks[J]. Analytical Methods, 12, 1316-1323(2020).