Téléchargement en ligne haute résolution non disponible. Livraison sous 24h.
Titre: Duquenois-Levine Test.
Légende: Voir la traduction automatique
Traduction en cours...
Traduction automatique:
Duquenois-Levine Test: Step 2: Addition of hydrochloric acid. The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test, an established screening test for the presence of marijuana. The test was initially developed in the 1930s by Pierre Duquenois, and was adopted in the 1950s by the United Nations as the preferred test for cannabis.
Crédit: Album / Universal Images Group / Universal History Archive
Taille de l'image: 4192 × 5003 px | 60.0 MB
Taille d'impression: 35.5 × 42.4 cm | 1650.4 × 1969.7 in (300 dpi)