对历史负责 为现实服务 替未来着想——记民政部国家减灾中心档案工作

A simple, rapid, sensitive, and specific field test for marijuana and its products is described. The test employs an extracting-eluting ssolvent and an inert adsorbent microcolumn coated with Fast Blue B salt as the reagent. One milligram or less of the suspect material can be tested within 1 min. O... View More