Sold in Boxes of 10 units/tests.

Presumptive Drug Test (PDT) includes a series of individual reagent tests that can be used by drug enforcement agencies, law enforcement officers and military CID units, easily and quickly identifying the use of controlled substances in these fields. PDTs are:

• For professional use only
• Easy to use
• Proven reagents
• Quick with results
• For one-time use only

Chen's Reagent for Narcotics Testing

Chen's Reagent is among the many presumptive drug tests (PDT) that can be used by drug enforcement agencies, law enforcement officers and even military CID units. This PDT is a comprehensive tool and at the same time a low-cost option to help quickly identify the use of controlled substances in these particular fields.

More About Chen's Reagent

Chen's reagents were first used in the detection of ephedrine against its reaction to substances like sodium hydroxide and copper sulfate back in 1892. Certain blue and violet marks (sometimes pink-purplish) were used to interpret results from these narcotics test kits. Typically, it is the ephedrine or pseudo-ephedrine compounds that show a violet result while other ephedrine-derivatives show a blue precipitate instead.

Mistral Chen's Reagent

Mistral Chen's Reagent can be used to identify the use of ephedrine or pseudoephedrine. It is an ever-dependable choice considering that the samples can be secured with the help of a tamper-proof tube. This can then mean lessening the chances of false-positive results in patients.