He, Wenliang, Xujia Hu, Zonghao Li, Xiaoshuang Chen, and Mousheng Liu. 2013. “Vortex-Shaking-Assisted and Supramolecular Solvent-Based Microextraction Followed by HPLC-FLD Determination of Benzo(a)pyrene in Water Samples”. Asian Journal of Chemistry 25 (16):9216-20. https://doi.org/10.14233/ajchem.2013.15171.