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/sci/ - Science & Math

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8241216 No.8241216 [Reply] [Original]

Chemfags,

How can I check the purity, and presence/absence of contaminants of a synthetic opioid in powdered form?

>> No.8241250

you can ask the FBI to do it ;)

>> No.8242517

Melting point

>> No.8242527

>>8242517
old school but not wrong

>>8241216
hplc

>>8241250
the DEA has a drug analysis journal
https://www.dea.gov/pr/microgram_journals.shtml

>> No.8243433

>>8242527
Nice.

>> No.8244227

>>8241216
run an assay

>> No.8244229

Tell me the weight of the opioid and tell me what kind of opioid is it, and Ill tell you how pure it is

>> No.8244248

>>8241216
What do you have access to?

Melting point is probably going to be the easiest for you.

>> No.8244305

>>8241216
I mean if you have access to an NMR that's a useful tool. I'm willing to bet your home drug lab doesn't though.
>>8242517
>>8244248
Quick and correct, but I'm willing to bet OP doesn't have enough opioid to burn through half of it to get a precise measurement. It also wouldn't be the best quantitative method, considering impurities could potentially eat up some of the heat, and the moment it melts some of the organic impurities could dissolve.

I would say also run a TLC plate on your heroin, as well OP. They're comparatively cheap and easy to setup. Only downside is that again, you won't have a quantitative result, but you can make a "good enough" comparison to see how much impurity is roughly in the sample.