Researchers at Portland State University have developed methods for measuring levels of free-base nicotine in electronic cigarette (e-cigarette) liquids and vapor, the levels of which are associated ...

A rapid method for simultaneously quantifying glycerin and nicotine in liquid mixtures used for electronic cigarettes is presented in this article. Using visible near infrared spectroscopy (VIS-NIRS), ...

Even if you check the ingredient list on your flavored e-cigarette, you may not know what you’re actually inhaling, according to a new study. “Our nose, mouth and throat contain nerve endings that ...