[1] Chen X L, Dong F Z, Tao G Q et al. Fast lithology identification by laser-induced breakdown spectroscopy[J]. Chinese Journal of Lasers, 40, 1215001(2013).

[2] Zhao Z H, Fang Q G[J]. Present situation and development trend analysis of coal quality on-line detection technology Goal Quality Technology, 2017, 18-21.

[3] Xin Y, Sun L X, Yang Z J et al. In-situ analysis of solid steel samples with remote double-pulse laser-induced breakdown spectroscopy system[J]. Spectroscopy and Spectral Analysis, 36, 2255-2259(2016).

[4] Liu X Y, Wang Z Y, Hao L Q et al. Application of laser induced breakdown spectroscopy technology in biomedicine field[J]. Laser Technology, 32, 134-136(2008).

[5] Wan X, Wang J Y, Ye J H et al. Analysis of distribution and contents of heavy metal pollution in fish body with laser-induced breaddown spectroscopy[J]. Spectroscopy and Spectral Analysis, 33, 206-209(2013).

[6] Pan S H, Lu J D, Chen K et al. Study on extraction effective signal in liquid steel by laser-induced breakdown spectroscopy[J]. Applied Laser, 30, 329-332(2010).

[7] de Giacomo A, Dell'Aglio M, de Pascale O et al. . From single pulse to double pulse ns-laser induced breakdown spectroscopy under water: elemental analysis of aqueous solutions and submerged solid samples[J]. Spectrochimica Acta Part B, 62, 721-738(2007). http://www.sciencedirect.com/science/article/pii/S0584854707001863

[8] Rai V N, Rai A K, Yueh F Y et al. Optical emission from laser-induced breakdown plasma of solid and liquid samples in the presence of a magnetic field[J]. Applied Optics, 42, 2085-2093(2003). http://www.ncbi.nlm.nih.gov/pubmed/12716149

[9] Rai V N, Yueh F Y, Singh J P. Study of laser-induced breakdown emission from liquid under double-pulse excitation[J]. Applied Optics, 42, 2094-2101(2003). http://europepmc.org/abstract/MED/12716150

[10] Kurihara M, Ikeda K, Izawa Y et al. Optimal boiler control through real-time monitoring of unburned carbon in fly ash by laser-induced breakdown spectroscopy[J]. Applied Optics, 42, 6159-6165(2003). http://europepmc.org/abstract/MED/14594079

[11] Yao S, Xu J, Zhao J et al. Characterization of fly ash laser-induced plasma for improving the on-line measurement of unburned carbon in gas-solid flow[J]. Energy & Fuels, 31, 4681-4686(2017). http://pubs.acs.org/doi/abs/10.1021/acs.energyfuels.6b02997

[12] Liu L M, Lin Z X, Zhang W Y et al. Detection of heavy metal elements in atmosphere by laser-induced breakdown spectroscopy[J]. Chinese Journal of Spectroscopy Laboratory, 29, 2384-2387(2012).

[13] Thornton B, Sakka T, Takahashi T et al. Spectroscopic measurements of solids immersed in water at high pressure using a long-duration nanosecond laser pulse[J]. Applied Physics Express, 6, 133-142(2013). http://adsabs.harvard.edu/abs/2013APExp...6h2401T

[14] Lazic V, Colao F, Fantoni R et al. Laser-induced breakdown spectroscopy in water: improvement of the detection threshold by signal processing[J]. Spectrochimica Acta Part B, 60, 1002-1013(2005). http://www.sciencedirect.com/science/article/pii/S0584854705001990

[15] Thornton B, Takahashi T, Sato T et al. Development of a deep-sea laser-induced breakdown spectrometer for in situ multi-element chemical analysis[J]. Deep Sea Research Part I, 95, 20-36(2015). http://www.sciencedirect.com/science/article/pii/S0967063714001897

[16] Xue B Y, Tian Y, Song J J et al. Study on the spatial distribution of laser induced plasma emission underwater with different laser energies[J]. Spectroscopy and Spectral Analysis, 36, 1186-1190(2016).

[17] Tian Y, Xue B Y, Song J J et al. Stabilization of laser-induced plasma in bulk water using large focusing angle[J]. Applied Physics Letters, 109, 515-517(2016). http://scitation.aip.org/content/aip/journal/apl/109/6/10.1063/1.4960711

[18] Zhong S L, Zheng R E, Lu Y et al. Ultrasonic nebulizer assisted LIBS: a promising metal elements detection method for aqueous sample analysis[J]. Plasma Science and Technology, 17, 979-984(2015). http://d.wanfangdata.com.cn/Periodical/dlztkxyjs-e201511017

[19] Zhang Y W, Gao X, Zhang Y et al. Investigation of Cu concentration in the CuSO4 solution by laser induced breakdown spectroscopy[J]. Spectroscopy and Spectral Analysis, 35, 2308-2311(2015).

[20] Miziolek A W, Palleschi V, Schechter I. Laser-induced breakdown spectroscopy (LIBS): fundamentals and applications[J]. Critical Reviews in Analytical Chemistry, 27, 257-290(2006). http://ci.nii.ac.jp/ncid/BA78907385

[21] Griem H R, Barr W L. Spectral line broadening by plasmas[J]. IEEE Transactions on Plasma Science, 3, 227-227(2007). http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4316912

[22] Lu T X, Lu Y Q[M]. The principle and application of laser spectroscopy.

[23] Feng D M. Definition of detection limit in atomic absorption spectrometry[J]. Chinese Journal of Analytical Chemistry, 3, 389-390(1975).

[24] Zhu G Z, Guo L B, Hao Z Q et al. Detection of metal element in water using laser-induced breakdown spectroscopy assisted by nebulizer[J]. Acta Physica Sinica, 64, 024212(2015).

[25] Fichet P, Mauchien P, Wagner J F et al. Quantitative elemental determination in water and oil by laser induced breakdown spectroscopy[J]. Analytica Chimica Acta, 429, 269-278(2001). http://www.sciencedirect.com/science/article/pii/S0003267000012770

[26] Samek O. Beddows D C S, Kaiser J, et al. Application of laser-induced breakdown spectroscopy to in situ analysis of liquid samples[J]. Optical Engineering, 39, 2248-2262(2000).

[27] Pearman W, Scaffidi J, Angel S M. Dual-pulse laser-induced breakdown spectroscopy in bulk aqueous solution with an orthogonal beam geometry[J]. Applied Optics, 42, 6085-6093(2003). http://europepmc.org/abstract/MED/14594070

[28] Qian Z P. The basic formula of quantitative analysis of spectra[J]. Spectroscopy and Spectral Analysis, 2, 72-73(1982).

[29] Hao Z Z, Huang Y J, Dong C Q et al[J]. Characteristics of carbonate system in the coastal sea off Qingdao in late winter Transactions of Oceanology and Limnology, 2016, 29-37.