Marquis – PRO Test

How to use crystalline reagents?

Jerzy Afanasjew — Tue, 14 Nov 2023 19:22:32 +0000

As a result of change in regulations we have replaced some liquid reagents with crystalline ones. "Crystals" may not be intuitive for everyone at first, so we are publishing the following guide and instructional video. Following the instructions is essential to fully benefit from dry colorimetric reagent tests. How to use crystalline reagents: Shake the […]

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False positive cocaine test results

Jerzy Afanasjew — Sun, 12 Nov 2023 17:02:46 +0000

Cocaine is a substance where we ask not whether it has impurities, but how many. Some of them increase toxicity, for example, lidocaine, levamisole, or stimulants such as meth/amphetamine or even caffeine. Others are entirely accidental, so they have no known interactions, for example, random pharmaceuticals from cold remedies to antimalarial drugs. Yet others are […]

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How to detect PMA / PMMA / PMEA?

Jerzy Afanasjew — Fri, 18 Aug 2023 13:40:48 +0000

What are PMA, PMMA and PMEA? Para-methoxyamphetamine (PMA), para-Methoxy-N-methylamphetamine (PMMA) and PMEA share a close chemical resemblance and are a part of the amphetamine-class serotonergic drugs known to be toxic to humans. They are believed to carry significant potential for inducing harmful side effects or even fatal outcomes in cases of overdose. These are substances classified as both a stimulant and […]

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How to test LSD gel tabs?

Jerzy Afanasjew — Thu, 17 Aug 2023 08:24:02 +0000

LSD gel tabs (also known as windowpane) are more tricky to test than other forms of LSD such as blotters, pills or crystals, because they contain more filler (carrier) substance, and because that substance itself can cause inclonclusive results. With gel tabs the typical LSD tests (Ehrlich reagent and Hofmann) are known to cause false negatives or […]

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1V-LSD reagent testing results

Jerzy Afanasjew — Fri, 16 Jul 2021 20:19:48 +0000

In regard to the recent 1V-LSD release we are informing about the expected color change reactions for reagents Ehrlich, Hofmann and Marquis. Ehrlich and Hofmann's reactions are similar like with LSD, but much slower and might only affect the sample, not the whole used reagent liquid. 1V-LSD reaction results: Ehrlich: Very slow purple (60 minutes) Hofmann: Very […]

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How to test psilocybin (magic mushrooms)?

Jerzy Afanasjew — Sat, 09 Jan 2021 22:16:05 +0000

Analysing mushrooms is confusing. Fungi contain hundreds of chemicals, some of which cause false positive results for psilocybin, the main active psychedelic ingredient.

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Marquis Reagent Test Instructions

Jerzy Afanasjew — Tue, 27 Oct 2020 17:08:08 +0000

Marquis Reagent Test Instructions The Marquis reagent test, initially developed by Eduard Marquis in 1896, is a commonly used qualitative spot test in the field of forensic chemistry to detect alkaloids and other compounds. It works by producing a color change when it reacts with specific substances. Typically, it is used to identify a range […]

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How to test MDA?

Jerzy Afanasjew — Wed, 21 Oct 2020 19:53:45 +0000

How to test MDA: if you intend to use MDA, first you need an MDA test kit to check it for adulterants. Pure MDA or Sally can look white, brown or tan and can't be identified by appearence. To test MDA use reagent tests Marquis, Mecke, Simon's and Robadope in single-use or multiple-use test kits. To detect fentanyl or test for fentanyl analogs it's recommended to use fentanyl test strips.

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How to test 2C-B?

Jerzy Afanasjew — Wed, 21 Oct 2020 09:03:01 +0000

GUIDEHow to test 2C-B? How to test 2C-B: if you intend to use a psychoactive substance first you need a test kit to check purity. Pure 2C-B can look brown or tan and can’t be identified by appearence. Check your sample with a single or multi-use 2C-B test kit. 2C-B tester Single use 2C-B tester available with free […]

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How to test DMT?

Jerzy Afanasjew — Wed, 21 Oct 2020 08:49:00 +0000

GUIDEHow to test DMT? How to test DMT: if you intend to use a psychoactive substance first you need a test kit to check purity. Pure DMT can’t be identified by appearance. Check your sample with a single or multi-use DMT test kit. DMT tester Single use DMT tester available with free shipping. This test gives the least […]

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