Zhang, J.-X.; Miao, M.-M.; Niu, X.-M.; Wang, S.-J.; Han, Y.; Zhang, K.-Q.; Zhang, C.-M. Simultaneous Quantitative Determination of Nonoxynol-9, Acrylamide, Sorbic Acid and Sodium Cyclamate in Toothpaste by HPLC-MS MS. ajc 2015, 27, 1194-1198.