The Mandelin Exam can be a reagent subject check carried out by putting a fall of liquid reagent on to a sample of the fabric in issue. Mandelin is mainly used for the detection of ketamine and PMA. It is actually a mixture of ammonium metavanadate and concentrated sulfuric acid. https://hectorufmtz.jts-blog.com/36307211/5-essential-elements-for-who-made-maybach