chemicalwasteland
Bluelighter
Does ghb (gbl,14bdo) have any reaction with any of the tests? thanks in advance.
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RT&DC Moderators: Senior Staff
Does ghb have any reaction?
- Thread starter chemicalwasteland
- Start date
phase_dancer
Bluelight Crew
The common reagents are not suitable for G chem detection.
There are a few test reagents that detect GHB/ GBL. Adapted from Clarkes Analysis of Drugs and Poisons
Chlorophenol red
0.04 g chlorophenol red in 100 mL water, adjust to pH 7 with 0.01 M sodium hydroxide.
Modified Schweppes
1. 2 g of dextrose in 20 mL of water.
2. 2.4 g of aniline hydrochloride in 20 mL of ethanol.
Mix solutions 1 and 2 together and dilute to 80 mL with methanol.
Bromocresol purple
0.04 g bromocresol purple in 100 mL.of water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Bromothymol blue
0.04 g bromothymol blue in 100 mL of water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Bromocresol green
0.03 g bromocresol green in 100 mL of 4:1 methanol:water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Methyl orange
0.01 g methyl orange in 100 mL of methanol. Adjust to pH 7 with 0.01 M sodium hydroxide.
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TESTS
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1) Mix chlorophenol red and modified Schweppes reagent in a 3:1 ratio.
Place 0.5 mL of a liquid sample in a test tube. Adjust to pH 5 to 8 with 0.01 M sodium hydroxide. Add two drops of the test reagent and swirl. An immediate colour change (orange–red to dark red) indicates GHB. GBL gives a yellow colour.
2) Mix bromocresol purple and bromothymol blue in a 1:1 ratio and mix the combined reagent with modified Schweppes reagent in a 7:1 ratio.
Same procedure as for colour test 1. GHB gives a purple colour and GBL gives a yellow colour.
3) Mix bromocresol green and methyl orange in a 1:1 ratio and mix the combined reagent with modified Schweppes reagent in a 3:1 ratio.
Adjust the pH of the test solution to neutral if necessary and add two drops of test reagent. A dark green colour indicates GHB; GBL gives a yellow–orange colour.
4) 1% cobalt nitrate solution.
Place 0.5 mL of a liquid sample in a test tube. Add a few drops of the test reagent. A pink–to–violet colour indicates GHB.
~~~~~~~~~~~
I do know of one test for detecting 1,4B, recently developed by an Australian chemist, but unfortunately it's the subject of a patent application and I'm sworn to secrecy. Sorry about that but hopefully it will one day become available.
There are a few test reagents that detect GHB/ GBL. Adapted from Clarkes Analysis of Drugs and Poisons
Chlorophenol red
0.04 g chlorophenol red in 100 mL water, adjust to pH 7 with 0.01 M sodium hydroxide.
Modified Schweppes
1. 2 g of dextrose in 20 mL of water.
2. 2.4 g of aniline hydrochloride in 20 mL of ethanol.
Mix solutions 1 and 2 together and dilute to 80 mL with methanol.
Bromocresol purple
0.04 g bromocresol purple in 100 mL.of water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Bromothymol blue
0.04 g bromothymol blue in 100 mL of water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Bromocresol green
0.03 g bromocresol green in 100 mL of 4:1 methanol:water. Adjust to pH 7 with 0.01 M sodium hydroxide.
Methyl orange
0.01 g methyl orange in 100 mL of methanol. Adjust to pH 7 with 0.01 M sodium hydroxide.
~~~~~~~~
TESTS
~~~~~~~~
1) Mix chlorophenol red and modified Schweppes reagent in a 3:1 ratio.
Place 0.5 mL of a liquid sample in a test tube. Adjust to pH 5 to 8 with 0.01 M sodium hydroxide. Add two drops of the test reagent and swirl. An immediate colour change (orange–red to dark red) indicates GHB. GBL gives a yellow colour.
2) Mix bromocresol purple and bromothymol blue in a 1:1 ratio and mix the combined reagent with modified Schweppes reagent in a 7:1 ratio.
Same procedure as for colour test 1. GHB gives a purple colour and GBL gives a yellow colour.
3) Mix bromocresol green and methyl orange in a 1:1 ratio and mix the combined reagent with modified Schweppes reagent in a 3:1 ratio.
Adjust the pH of the test solution to neutral if necessary and add two drops of test reagent. A dark green colour indicates GHB; GBL gives a yellow–orange colour.
4) 1% cobalt nitrate solution.
Place 0.5 mL of a liquid sample in a test tube. Add a few drops of the test reagent. A pink–to–violet colour indicates GHB.
~~~~~~~~~~~
I do know of one test for detecting 1,4B, recently developed by an Australian chemist, but unfortunately it's the subject of a patent application and I'm sworn to secrecy. Sorry about that but hopefully it will one day become available.
chemicalwasteland
Bluelighter
thanks alot for the info