[1] CHEN Jin-zhong, MA Rui-ling, WANG Jing, et al . Detection of the elements Mn and Ni in a steel sample by laser-induced breakdown spectroscopy［J］. Acta Photonica Sinica, 2014, 43(12): 1214001.
[3] BABUSHOK V I, DELUCIA Jr F C, GOTTFRIED J L, et al . Double pulse laser ablation and plasma: Laser induced breakdown spectroscopy signal enhancement［J］. Spectrochimica Acta Part B, 2006, 61(9): 999-1014.
[4] HOHREITER V, HAHN D W. Dual-pulse laser induced breakdown spectroscopy: Time-resolved transmission and spectral measurements［J］. Spectrochimica Acta Part B, 2005, 60(7-8): 968-974.
[5] SHEN X K, SUN Jian, LIN Hao, et al . Spatial confinement effects in laser-induced breakdown spectroscopy［J］. Applied Physics Letters, 2007, 91(8): 081501.
[6] POPOV A M, COLAO F, FANTONI R. Enhancement of LIBS signal by spatially confining the laser-induced plasma［J］. Journal of Analytical Atomic Spectrometry, 2009, 24(5): 602-604.
[7] VILJANEN J, SUN Zhi-wei, ALWAHABI Z T. Microwave assisted laser-induced breakdown spectroscopy at ambient conditions［J］. Spectrochimica Acta Part B, 2016, 118: 29-36.
[8] KHUMAENI A, MOTONOBU T, KATSUAKI A, et al. Enhancement of LIBS emission using antenna-coupled microwave［J］. Optics Express, 2013, 21(24): 29755-29768.
[9] YI Rong-xing, LI Jia-ming, YANG Xin-yan, et al . Spectral interference elimination in soil analysis using laser-induced breakdown spectroscopy assisted by laser-induced fluorescence［J］. Analytical Chemistry , 2017, 89(4): 2334-2337.
[10] LI Chang-mao, HAO Zhong-qi, ZOU Zhi-min, et al . Determinations of trace boron in superalloys and steels using laser-induced breakdown spectroscopy assisted with laser-induced fluorescence［J］. Optics Express, 2016, 24(8): 7850-7857.
[11] NASSEF O A, ELSAYED-ALI H E. Spark discharge assisted laser induced breakdown spectroscopy［J］. Spectrochimica Acta Part B, 2005, 60(12): 1564-1572.
[12] SOBRAL H, ROBLEDO-MARTINEZ A. Signal enhancement in laser-induced breakdown spectroscopy using fast square-pulse discharges［J］. Spectrochimica Acta Part B, 2016, 124: 67-73.
[13] ALEXANDER A, BOL′SHAKOV, MAO Xiang-lei, et al . Spectral emission enhancement by an electric pulse for LIBS and LAMIS［J］. Journal of Analytical Atomic Spectrometry, 2017, 32(3): 657-370.
[14] ZHOU Wei-dong, LI Ke-xue, SHEN Qin-mei, et al . Optical emission enhancement using laser-ablation combined with fast pulse discharge［J］. Optics Express, 2010, 18(3): 2573-2578.
[15] HUNTER A J R, DAVIS S J, PIPER L G, et al . Spark-induced breakdown spectroscopy: A new technique for monitoring heavy metals［J］. Applied Spectroscopy, 2000, 54(4): 575-582.
[16] TAEFI N, KHALAJI M, TAVASSOLI S H. Determination of elemental composition of cement powder by spark induced breakdown spectroscopy［J］. Cement and Concrete Research, 2010, 40(7): 1114-1119.
[17] LI Ke-xue, ZHOU Wei-dong, SHEN Qin-mei, et al. Laser ablation assisted spark induced breakdown spectroscopy on soil samples［J］. Journal of Analytical Atomic Spectrometry, 2010, 25(9): 1475-1481.
[18] HE Xiao-yong, DONG Bo, CHEN Yu-qi, et al. Analysis of magnesium and copper in aluminum alloys with high repetition rate laser-ablation spark-induced breakdown spectroscopy［J］. Spectrochimica Acta Part B, 2018, 141: 34-43.
[19] CHEN Yu-qi, ZHANG Qian, LI Guan, et al . Laser ignition assisted spark-induced breakdown spectroscopy for the ultra-sensitive detection of trace mercury ions in aqueous solutions［J］. Journal of Analytical Atomic Spectrometry , 2010, 25(12): 1969-1973.
[20] LI Guan, JIANG Jie, ZHANG Qian, et al . High sensitive detection of trace Hg (II) in natural water with laser ignition assisted spark-induced breakdown spectroscopy［J］. Chinese Journal of Lasers, 2011, 38(7): 0715002.
[21] LI Hong-kun, LIU Ming, CHEN Zhi-jiang, et al . Quantitative analysis of impurities in aluminum alloys by laser-induced breakdown spectroscopy without internal calibration［J］. Transactions of Nonferrous Metals Society of China, 2008, 18 (1): 222-226.
