Glass-backed UNIPLATES : Analytical Layers : Modified Silica Gel : Ammonium Sulfate
A common method for visualizing organic compounds on a silica gel TLC plate is charring. This is usually accomplished by spraying the plate with a dilute sulfuric acid followed by heating. Organic substances appear as brown to black spots against a white background. This method is comparable in sensitivity to the visualization of UV-adsorbing compounds against a fluorescent background.Silica Get H UNIPLATES containing ammonium sulfate eliminate the need to use messy sulfuric acid for charring.
Just evaporate the developing solvent until the plate is completely dry, then heat at 150° – 200°C for 30 to 60 minutes to achiece charring.
The Analtech VPF chamber is specifically designed for this application. Other percentages of ammonium sulfate may be specified.
To purchase Ammonium Sulfate TLC Plates please visit Analtech’s Online Store Ammonium Sulfate TLC Plates Section