Wu Yi-Qing, Liu Jin, Mo Xin-Xin, Sun Tong, Liu Mu-Hua. Quantitative analysis of chromium in vegetable oil by collinear double pulse laser-induced breakdown spectroscopy combined with dual-line internal standard methodJ. Acta Physica Sinica, 2017, 66(5): 054206. DOI: 10.7498/aps.66.054206