WebApr 17, 2024 · This stain is light and oxidation sensitive and will gradually turn pink/orange. The stain should be kept in an aluminum-covered jar while in use, and the excess should be kept cold and in the dark. Once the stain turns dark red, it … WebDoes anyone know of a TLC dye that can stain this compound? Hanessian's stain? It's a blue cerium based compound and one of the commenters here has had success with silyl ethers. Cerium ammonium molybdate (this is by far my favourite stain when I'm not sure what a better option would be) or possibly H2SO4 like some one already suggested.
Recipes for TLC Stains - UTRGV
WebCAM stain (CAS:12054-85-2) 2.5g Oxidative stain. Cerium ammonium sulfate dihydrate (Hanessian's (CAS:10378-47-9) Strong 1g heating required. Very universal stain. More sensitive Stain; Cerium Sulfuric acid 10mL than PMA stain. Ammonium Water Procedure 90mL same as PMA Molybdate Application technique same as stain) for the … WebFeb 13, 2014 · This stain is an excellent multipurpose visualization method for examining TLC plates. It is sensitive to most functional groups, especially those which are strongly and weakly nucleophilic. It... oxley teach
Thin Layer Chromatography - University of California, …
WebApr 18, 2015 · Introduction Thin-layer chromatography (TLC) is a very commonly used technique in synthetic chemistry for identifying compounds, determining their purity and following the progress of a reaction. It also … WebIodine: Shake with powdered I2. You can then heat the plate to remove the iodine stain, and use a liquid TLC stain as usual. Anisaldehyde (great for carbonyl groups). Dip, dry and heat on hot plate to develop. EtOH (200 mL); H 2 SO 4 su (10 mL); p -anisaldehyde (10 mL) EtOH (250 mL); H 2 SO 4 su (2.5 mL); p -anisaldehyde (15 mL) WebTLC Stain Recipes Anisaldehyde 9.2 mL p-anisaldehyde 3.75 mL AcOH 338 mL 95% ethanol 12.5 mL conc. H2SO4 Potassium Permanganate 3 g KMnO4 20 g K2CO3 5 mL … jefferson county public library kentucky