Marquis Reagent is a simple spot-test that can identify alkaloids and other compounds. This is a mixture of formaldehyde and sulfuric acid concentration. This is dripped into the substance that is being tested. If you are wondering how the Marquis reagent test kit works, you have come to the right place! Let this article guide you on everything that you need to know about this reagent test kit.
The History of Marquis Reagents
The Marquis reagent was first discovered in 1896 by Eduard Marquis. He discovered and described the reagent in his 1896 magister dissertation and he named it after him. It was tested for the first time at the University of Dorpat. Since then, the Marquis reagent became one of the most important reagents in the market.
The Marquis Reagent Test Kit
As mentioned above, the Marquis Reagent is a combination of concentrated sulfuric acid and formaldehyde. This is very important when used to test a variety of substances. When used on different substances, it will create color reactions such as the following:
- 2C-B – creates a color yellow to green after 30 seconds
- 2C-T-x – this will give an orange to salmon color
- BZP – it fizzes and the color doesn’t change
- DXM – will slowly change color from gray to black
- Meth/amphetamine – gives out an orange color
- MDPV, Methylone, Butylone – gives out a yellow color
- MDxx – changes color from purple to black
How To Use The Marquis Reagent Test Kit
It is very important that you know how the test kit is used. Experts advice that you should never have more than one bottle of reagent opened at a time. Remember that if you ever mix up the caps and mistakenly put the wrong cap on the wrong bottle of reagent, it may cross-contaminate all the reagents and ruin them in the process.
So before you perform the test, make sure that you do it one at a time and in a well-lit location. Here’s how you do the test:
- Scrape Your Pill. Just scrape a small amount of your pill or powder on a large, white ceramic plate or container. Just a tiny bit will do, enough that you can see it on the plate.
- Use The Reagent. In order to do this, you take the reagent bottle out of its plastic safety container. Then you remove the cap and turn the bottle upside-down just a few inches above the powder. The squeeze a drop of reagent onto the powder. Take note that you should not let the dropper touch the powder or else you will contaminate and ruin the test. Make sure that you replace the cap right after.
- Observe the Color. Now you have to carefully observe the color if it changes right away. You can use the Marquis color chart that is included with your kit to determine the result of your test.
Storage and Disposal
Take note that if for example, the reagent did not change in color on the first 30 seconds, this means that the pull does not have the substances mentioned above. Once you are done with the test, make sure that you store the Marquis reagent test kit properly. Remember that it is made of sulphuric acid and it is strong enough to burn the skin or your clothing. Dispose of any unwanted reagent down your sink with baking soda and running water. Also, ensure that you keep the testing kits in a cold and dark place between uses.