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InvisibleHiei
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How to Field Test for LSD
    #8604223 - 07/07/08 03:37 PM (12 years, 7 months ago)

How to Field Test for LSD
Avoid duds by Testing them Yourself.

Following are step-by-step instructions for field testing blotter for LSD

  1. Extract a section of the blotter with a minimal amount of ethanol. (enough to leave you with a few drops of liquid)
  2. Put a drop of the extraction on a 4-(dimethylamino)-benzaldehyde impregnated piece of filter (or chromatographical) paper.
  3. Allow to dry.
  4. Put one drop of concentrated hydrochloric acid (muriatic acid will work) on one side of the paper. A colored front should migrate over the paper (concentrating the color).
  5. A purple colored ring will appear (changing to blue 30-60 minutes later) if alfa or beta unsubstituted indoles are present (the whole paper will color if large amounts are present). This purple / blue coloring signifies the presence of LSD.

According to the source, this simple field test is able to detect 7.5 micrograms (ug) of lsd without a problem (typical doses were listed as 75-250 micrograms; you should get that lucky or unlucky for that matter)

from erowid...


what do you think about this?


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OfflineMushr00m_Man
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Re: How to Field Test for LSD [Re: Hiei]
    #8604278 - 07/07/08 03:56 PM (12 years, 7 months ago)

thats cool but that seems like a lot of things to cary around to test it i do it the risky way in the rare chance i get cid i put it in my mouth. but this is a sweet tek


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OfflinePlasmid
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Re: How to Field Test for LSD [Re: Hiei]
    #8610209 - 07/08/08 11:31 PM (12 years, 7 months ago)

A reaction does not exclusively indicate a positive for LSD.  It will give a positive for indole compounds, so psilocin, indole based RCs or an adulterant will test positive. 

For example, it would be possible for someone to put DOB and tryptophan on a dose and that would result in a positive reaction.


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Offlinesupernovasky
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Re: How to Field Test for LSD [Re: Plasmid]
    #8610219 - 07/08/08 11:33 PM (12 years, 7 months ago)

Plasmid - The most important thing, though, is that it would distinguish dummies (fake lsd with nothing on it) from actives. As for what kind of active, sure, there is no definitive test, but at least you'd know if you were getting something or nothing at all. I could see it being useful for big first-time deals.


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Re: How to Field Test for LSD [Re: supernovasky]
    #8610343 - 07/09/08 12:04 AM (12 years, 7 months ago)

That's true.  I suppose if you're going to get ripped off, then blank paper will do just as good a job as tryptophan.

You never know though, I remember the other day I saw a video on YouTube of a guy who recorded himself tripping and kept saying, "Five bucks for a hit of acid and he gave me DXM."  I think Ehrlich's reagent reacts with more than just indoles, but yeah, it won't react with blank paper.


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Re: How to Field Test for LSD [Re: Plasmid]
    #8610689 - 07/09/08 01:39 AM (12 years, 7 months ago)

I'm fairly certain that indole can be used as a mimic for this test. If I remember correctly, there is a fairly recent J Chem Ed paper indicating this. Also lists potential mimics for other illicit substances.


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InvisibleHiei
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Re: How to Field Test for LSD [Re: naum]
    #8611722 - 07/09/08 07:23 AM (12 years, 7 months ago)

It says "this simple field test is able to detect 7.5 micrograms (ug) of lsd"

So you guys think that's not true? I mean... If there is some other psychoactive it would test positive like if it was LSD ? what a shame...


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Re: How to Field Test for LSD [Re: Hiei]
    #8611726 - 07/09/08 07:28 AM (12 years, 7 months ago)

GOD I hate RCs. Just reading about them makes me want to close this window.


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Re: How to Field Test for LSD [Re: skincolormarker]
    #8611727 - 07/09/08 07:29 AM (12 years, 7 months ago)

Uhm sorry about that... I hate them two and that's why I hope this test works only for lsd.


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Re: How to Field Test for LSD [Re: Hiei]
    #8611740 - 07/09/08 07:37 AM (12 years, 7 months ago)

i was thinking about trying this out, but then i thought about the 2 hours i'd spend in home depot confused and lost. it would be worth it not to get burned on a large purchase though


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Re: How to Field Test for LSD [Re: Alicedee25]
    #8611884 - 07/09/08 09:07 AM (12 years, 7 months ago)

I might be wrong but are the r.c.'s U.V. light reactive or anything else that could fit on blotter other then acid? I know it could still be one of the other lsa or lsh because they glow.

But If dox and what not are not UV reactive why not take a simple 1$ U.V. money detector and see if the paper glows a blue/green compared to just bright white. Then if it does Glow you will know its probably cid or highlighters but not a r.c.


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Re: How to Field Test for LSD [Re: skincolormarker]
    #8611909 - 07/09/08 09:19 AM (12 years, 7 months ago)

RC's are awesome

dont knock em till you've tried em


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Re: How to Field Test for LSD [Re: indica]
    #8612012 - 07/09/08 09:55 AM (12 years, 7 months ago)

Yeah, I mean, a simple way around this test's shortcomings would be to test for more than one property, such as UV fluorescence (I'm not sure if indoles or only ergolines with the extra conjugated double bond are fluorescent).  The more properties that you test, the more you can be confident that you have what you want, so long as all of the tests are positive.


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Re: How to Field Test for LSD *DELETED* [Re: Plasmid]
    #8612674 - 07/09/08 01:27 PM (12 years, 7 months ago)

Post deleted by phoenity

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Re: How to Field Test for LSD [Re: phoenity]
    #8616580 - 07/10/08 10:46 AM (12 years, 7 months ago)

It is.  There is a method that involves observing the original fluorescence of LSD and then exposing it to UV light while in water for a few hours and watching to see if the photoreaction product loses the fluorescence (lumi-LSD, I think it's called, it's 10-OH-LSD, is not fluorescent).  I'll dig up a reference later.


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Re: How to Field Test for LSD [Re: Plasmid]
    #8623988 - 07/12/08 01:47 AM (12 years, 7 months ago)

Plasmid, that's all very fine and well but it kind of defeats the field testing part. If it can't be done on the fly, then you lose a lot of benefit.

I'd find it very amusing if someone busted out a TLC plate, a capillary, a TLC chamber (or two), a UV light, and some authentic sample. :laugh:

There was also a pretty neat citation in a recent issue of microgram which indicated that it is possible to verify LSD in blotter directly using ATR FTIR. Looks like it is restricted though. Not exactly field either, but non-destructive.


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Re: How to Field Test for LSD [Re: naum]
    #8624974 - 07/12/08 12:57 PM (12 years, 7 months ago)

I think the simple fact is that there's not going to be any field test that is specific for LSD and LSD only.  Field tests that give positives are consistent with LSD, but could still be shown to be something other than LSD.  So you either presume that your field test is good enough or go to the back of your car and break out your spectrophotometer.


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