She also noted that a recent study at Virginia Commonwealth University found that e-cigarettes offer poor delivery of the drug smokers crave.E-cigarettes vaporize liquid containing nicotine.
同时,她也指出,维吉尼亚州立大学最近发现,电子香烟对于减弱吸烟者的烟瘾作用甚微。而电子香烟是利用气化内部含有的尼古丁的液体的原理制成的。
But the Federal Drug Administration has concerns about chemicals in e-cig cartridges, and the recent Virginia study says that besides possible health dangers, the battery-powered butts deal a weak dose of nicotine.
尽管如此,美国联邦食品药物管理局已经着手研究电子香烟中的化学成分,而维吉尼亚大学最近的研究报告宣称,电子香烟不仅对人体存在潜在的伤害,而且还会让使用者摄入微量的尼古丁。