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NOTE: Reagent was upgraded to better react with Ketamine in. May 2002. LSD. 907 . #908 Duquenois-Levine Reagent – Marijuana. The Duquenois-Levine The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test is an established screening test for the presence of marijuana. The test was ODV 908 908 NarcoPouch Duquenois-Levine Reagent (Marijuana) Presumptive Drug Testing Kits for all your presumptive testing situations. NarcoPouch kits 8 Jul 2016 Court acceptance of the Duquenois-Levine Reagent has been established This test must be administered following its specific instructions and may be usedeach of Mayer's Reagent, Marquis Reagent and one box of tests each for cocaine (Duquenois-Levine and KN methamphetamine/MDMA, and heroin,. 28 Apr 2016 NARK2005C Duquenois-Levine Reagent for Marijuana (Ampoule 3). Product P201 - Obtain special instructions before use . 695 mg/kg (Rat; OECD 401: Acute Oral Toxicity; Experimental value; 908 mg/kg bodyweight;. 18 Mar 2014 The Duquenois-Levine field test is a variation of drug testing of cannabinoids, turning the reagent “an intense violet blue color. It should be noted that a two page instruction sheet for the NarcoPouch 908 includes a note After Breaking 3rd Ampoule. Pink. Over. Blue. For All Plant Materials and Oils. #908 DUQUENOIS. #909 KN REAGENT. LEVINE REAGENT. Marijuana. Purple. Trade name: ODV™ Duquenois-Levine Reagent 1st Ampoule. · Article number: 908 (1006324), 7608 (1006035) Obtain special instructions before use. P202.