Direct Determination of Chlorpyrifos in Honey by Neutral Desorption-Extractive Electrospray Ionization Mass Spectrometry. - Luo, Li-Ping; Yu, Teng-Hui; Liu, Xing-Xing; Huang, Xue-Yong; Fang, Xiao-Wei; Zhang, Xing-Lei; Guo, Xia-Li (Analytical Letters, 2017)