http://www.netvouz.com/oupsemma/tag/half_life?feed=rss oupsemma's bookmarks tagged "half_life" on Netvouz http://www.sciencedaily.com/releases/2011/09/110928142450.htm Polonium210, that could have been eliminated by a technique called acid-wash; but as it would ionize nicotine, thus rendering it more difficult for the smoker's brain to absorb, acid-wash has not been used. oupsemma Fri, 30 Sep 2011 13:21:31 GMT