Miles Scientific Analtech WOELM Silica Gel G (Gypsum) TLC Plates, 250 um, 20 x 20 cm, 25/Pk - P16011

Glass-backed Analytical TLC Plates

Miles Scientific Analtech Brand WOELM Silica Gel G (Gypsum) TLC Plates, 250µm, 20x20cm, 25pk

Product Number: P16011

Weight: 7.10 LBS

G - (Gypsum) Calcium Sulfate Hemihydrate binder

Analtech Brand Silica Gel G / GF TLC Plates

• Silica Pore: 60Å
• Silica Particle Size: 8-10 μm average
• Binder: Calcium sulfate a.k.a. gypsum (inorganic)
• Hardness: 20-40

Acceptable Solvents:

All typical chromatography solvents (20% water max) Visualization Techniques: Compatible with essentially all visualization reagents, even sulfuric acid charring. Spraying reagent is suggested; layer is incompatible with aqueous dipping technique.

General Description:

Considered to be the original “Classic” TLC plate. Gypsum (calcium sulfate) binder produces softer layer for easy scraping and removal of spots or bands for further analysis. This is the best choice when preparative work is needed using thicker coatings to isolate larger quantity of material. Because the binder is inorganic, it is compatible with aggressive visualization techniques such as sulfuric acid charring. Limited water tolerance due to slight solubility of calcium sulfate in water precludes dipping procedure but is applicable with spray techniques.

These plates are prepared the same as Analtech Silica Gel G UNIPLATES with calcium sulfate binder, however they contain silica gel supplied by ICN Biomedicals, Inc. (formerly Woelm.) They are intended for procedures specifying Woelm silica.