Application of a high resolution benchtop quadrupole-Orbitrap mass spectrometry for the rapid screening, confirmation and quantification of illegal adulterated phosphodiesterase-5 inhibitors in herbal medicines and dietary supplements - Shi, F; Guo, C; Gong, L; Li, J; Dong, P; Zhang, J; Cui, P; Jiang, S; Zhao, Y; Zeng, S (J Chromatogr A, 2014)