Tetraazacalix[2]arence[2]triazine Coated Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> Magnetic Nanoparticles for Simultaneous Dispersive Solid Phase Extraction and Determination of Trace Multitarget AnalytesWenfen Zhang, Shusheng Zhang, Hong Chang et al.|Analytical Chemistry|2016Cited by 72