title: Analytical methods for cytokinins author: Petr Tarkowski, Liya Ge, Jean Wan Hong Yong and Swee Ngin Tan pub: TrAC Trends in Analytical Chemistry doi:10.1016/j.trac.2008.11.010 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V5H-4V3HF5V-1&_user=10&_coverDate=12%2F07%2F2008&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=82539a7f8457140dcac6f232cfb166fd