I eRaver I
Bluelighter
On EZ test what does PMA come up as?
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RT&DC Moderators: Senior Staff
PMA
- Thread starter I eRaver I
- Start date
No change. The EZ Test web site could have answered this for you.
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Drum Ass
Look before you ask or drop. Try searching the forums or visit:
Pill Reports
Dance Safe Current Results Page
Interactive Ecstasy Testing Database
[This message has been edited by Drum Ass (edited 12 August 2001).]
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Drum Ass
Look before you ask or drop. Try searching the forums or visit:
Pill Reports
Dance Safe Current Results Page
Interactive Ecstasy Testing Database
[This message has been edited by Drum Ass (edited 12 August 2001).]
yup, no change. keep in mind that the presence of MDMA will always yield a positive test for MDMA that cannot be distinguished easily from other results and obviously cannot be distinguished from the result you'd get from MDMA + PMA.
It is impossible to exclude the presence of PMA using the Marquis reagent and it's also impossible to exclude the presence of other drugs given a positive test for MDMA, since the dark purple color will mask any other colors present.
GC/MS would exclude the presence of PMA; so would thin-layer chromatography (TLC) using a PMA reference sample and a Mandelin reagent spray after running the plate.
There are reactions that preferentially cleave methoxy groups over methylenedioxy groups, but these are difficult to perform without equipment and experience - and if you had the ability to easily perform the reactions, you'd have access to a GC/MS or at least an IR spectrometer as well. ...IR spectrometry is the cheapest and one of the simplest methods of spectral analysis, and we *always* confirm the identity of our products with IR spectrometry. it's not normally used on mixed samples, but if you were to extract the acid salts from a sample and run an IR on that, you would be able to determine whether a methoxy group was present.
It is impossible to exclude the presence of PMA using the Marquis reagent and it's also impossible to exclude the presence of other drugs given a positive test for MDMA, since the dark purple color will mask any other colors present.
GC/MS would exclude the presence of PMA; so would thin-layer chromatography (TLC) using a PMA reference sample and a Mandelin reagent spray after running the plate.
There are reactions that preferentially cleave methoxy groups over methylenedioxy groups, but these are difficult to perform without equipment and experience - and if you had the ability to easily perform the reactions, you'd have access to a GC/MS or at least an IR spectrometer as well. ...IR spectrometry is the cheapest and one of the simplest methods of spectral analysis, and we *always* confirm the identity of our products with IR spectrometry. it's not normally used on mixed samples, but if you were to extract the acid salts from a sample and run an IR on that, you would be able to determine whether a methoxy group was present.