Chemical analysis of electronic cigarette liquids (e liquids) and direct nicotine quantitation using surface assisted flowing atmospheric pressure afterglow desorption ionization mass spectrometry (SA FAPA MS) RSC Advances (RSC Publishing) Calculateur DIY et e liquide pour cigarette lectronique Increased oxidative stress responses in murine macrophages exposed at the air liquid interface to third and fourth generation electronic nicotine delivery system (ENDS) aerosols ScienceDirect Low field NMR spectroscopic study of e cigarettes: Is determination of only nicotine and organic carrier solvents possible? ScienceDirect