ETX 20 Lecture Notes - Petroleum Ether, Harrison Narcotics Tax Act, Gynoecium
11 Mar 2014
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2 grams vanillin dissolved into 100 ml ethanol and 2. 5 ml of acetaldehyde. Chromophore (region of light absorption - electron transitions giving the complementary color) formed from condensation reaction. Quality control: traceable reagents (lot numbers and approved vendors), standardized formulations, and periodic checks with verified reference material: microscopy plant morphology, trichomes (hairs) Cystolithic (bear claw) nonglandular on dorsal calcium carbonate deposit. Unicellular cover and glandular hairs on ventral: thin layer chromatography. Colors visualized with fast blue b, fast blue bb, or duquenois reagent. Rf determination (spot distance from origin divided by total solvent front distance) Quality control: use of reference materials, traceable reagents (lot numbers and approved vendors), and standardized formulations: gas chromatography/fid. Quality control: traceable reagents (lot numbers and approved vendors), standardized formulations, and periodic checks with verified reference material: gas chromatography/mass spectrometry. Quality control: traceable reagents (lot numbers and approved vendors), standardized formulations, and periodic checks with verified reference material.
