// Definition
A non-destructive analytical chemistry technique that uses strong magnetic fields to identify molecular structures in cannabis extracts. Unlike HPLC and GC which destroy samples during analysis, NMR preserves the sample while providing a comprehensive molecular fingerprint that reveals cannabinoid ratios, terpene profiles, contaminants, and decarboxylation levels in a single test.
// From the Episode
Mark Scialdone (PhD Chemistry) introduced Proton NMR to the Hash Church audience, explaining the physics of how protons in atomic nuclei interact with externally applied magnetic fields to produce unique molecular signatures. He described the 600 MHz NMR instrument shown in Jason Pinsky’s Facebook video, noting it generates a magnetic field of approximately 9,600 Gauss — strong enough to erase credit cards and interfere with pacemakers. Scialdone emphasised that any university chemistry department has NMR facilities and typically charges around $150 per sample, though interpretation of results requires specialised expertise.