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Twiga said:
looks like i got 5 hits of some acid.     

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Have fun!

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Loonery said:
The easiest way to do a presumptive test for LSD is to get an UV light (a "blacklight" like the kind that are used in clubs to make things fluoresce). LSD and other ergolenes fluoresce when exposed to UV (and fortunately, their absorption maxima are around the peak output wavelength of blacklights). This means that if LSD or another ergolene is exposed to UV, it will fluoresce. It will fluoresce a beautiful blue color. If you put something you suspect is LSD under blacklight and it glows blue then it suggests that LSD or another ergolene (like some of the substances found in Morning Glory seeds or some of the products of LSD's degradation) are present. It does not conclusively establish the presence of LSD, but it's a very good indication of the presence of an ergolene such as LSD.

It does not tell you that other chemicals are absent, of course.  However, if I bought some blotter and it fluoresced blue under UV, then I'd be very confident that it contained LSD and probably only LSD (except for things like isoLSD). Most dealers aren't aware of LSD's fluorescence so they are unlikely to add another ergolene to blotter in order to trick people into thinking LSD in present, though it is possible (and I've never heard of anyone using fluorescence on the street). If it doesn't fluoresce, then no ergolene is present.

Some have previously raised doubts about being able to observe the flourescence of LSD due to the small dose. Contrary to what many say, a dose of LSD is not too small to be seen by the naked eye. It's just that in blotter it's distributed across the surface area of the blotter (including in the paper itself). If you expose it to UV in the dark, you should be able to see the fluorescence easily.

Blacklights are cheap and are the best way I can think of for doing a presumptive field test for LSD.

I am going to extract ergot alkaloids from Morning Glory seeds and post some pictures of their fluorescence at various dilutions.

Ergolene is 9,10-didehydroergoline, which is a parent structure of LSD (actually it should be "9,10-ergolene" just to be clear but I've never seen a source use "ergolene" to refer to other unsaturated ergolines). Another way of putting it is to say that LSD contains the ergolene skeleton.

If you don't test it in some way then there isn't really any way to know what you're getting. Some argue that a bitter taste suggests the presence of a research chemical (such as DOI) but it's not much to go on, nor does a bitter taste confirm the absence of LSD.

Some of the substances that have been found on blotters include things you might expect like DOB or 2C-C. However, some blotters have been found containing alprazolam (Xanax) and even a steroid. I won't venture a guess as to the proportion of counterfeit blotters and I am sceptical about PeterPanda209's statement that RC's aren't a worry (I really doubt that he has any idea as to how often blotters are sold with RCs on them and any regional or temporal variations that may occur in counterfeit blotters). However, as with any illicit drug, adulteration is always a risk.

Even if you think your source is being straight with you doesn't necessarily mean anything. One of the guys I buy weed from told me he could get LSD and that his source said he was making it from 2C-I. My guy didn't know enough about LSD to know if this makes any sense and I suspect his prospective source believed it himself.  Most of the people selling the stuff don't know jack about where their acid came from or how it's made. Even if you have a reliable source who gets you quality products, that doesn't really mean they have any idea as to what they're talking about.

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