NARK Duquenois Reagent (Marijuana/Hashish/THC)

This presumptive test is designed to identify THC in Marijuana. This original chemistry was the foundation for the three ampoule Duquenois-Levine (more specific) but is recognized as an excellent test for THC. The 1st ampoule should be agitated for sixty

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NARK II KN Reagent (Marijuana green plant and seeds)

Putting law enforcement's drug testing kits to the test

NARK II Duquenois-Levine Reagent

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NARK Duquenois Reagent (Marijuana/Hashish/THC), tube style – medtechforensics

Duquenois–Levine reagent - Wikipedia

A review of chemical 'spot' tests: A presumptive illicit drug identification technique - Philp - 2018 - Drug Testing and Analysis - Wiley Online Library

NARK II KN Reagent (Marijuana green plant and seeds)

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File:Duquenois Reagent.jpg - Wikipedia

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