[2] Chuanmei Du, Xiaoyan Liu, W Miao et al. Optik, 187, 98(2019).

[4] N Li, C Yan, X Zhang et al. Journal of Analytical Atomic Spectrometry, 35, 403(2020).

[5] Luna Aderval S, Gonzaga Fbiano B, da Rocha Werickson F C et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 139, 20(2018).

[6] Z Hao, J Li, Y Tang et al. Optics Express, 26, 12121(2018).

[8] R Hai, P Liu, D Wu et al. Plasma Science & Technology, 17, 687(2015).

[11] Minchao Cui et al. Applied Spectroscopy, 73, 152(2018).

[12] M Akhtar, A Jabbar, S Mehmood et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 148, 143(2018).

[15] M Guo G, H Niu G, Q Shi et al. Analytical Methods, 11, 3006(2019).