Miles Scientific Analtech Silica Gel HF (Binder-free adsorbent, Fluorescent indicator UV254) Prep TLC Plates, Glass-backed, 500 um, 20 x 20 cm, 25/Pk - P20012

Glass-backed Prep TLC Plates

Miles Scientific Analtech Brand Silica Gel HF Prep Thin Layer Chromatography (TLC) Plates - Glass-Backed - 500µm Thickness - 20x20cm - Box of 25 Plates

Product Number: P20012

Weight: 11.10 LBS

• H - Binder-free adsorbent
• F - Fluorescent indicator UV254. (Can be added to any adsorbent.)

Silica Gel H & HF UNIPLATES™ – Binder Free

• Silica Pore: 60Å
• Silica Particle Size: 8-10 μm average
• Binder: Proprietary polymer (organic)
• Hardness: 200-400 (easy to write on with pencil)

Acceptable Solvents:

All typical chromatography solvents (80% water max)

Visualization Techniques:

Compatible with most visualization reagents except sulfuric acid charring. Reagent may be dipped or sprayed. Some incompatibility with certain acidic reagents.

General Description:

Best layer choice unless contra-indicated by noted incompatibilities of visualization reagents or mobile phase composition. Hard layer organic binder system is the most rugged, providing easy handling of layer during sample application, mobile phase development, visualization and data interpretation. Rugged layer surface provides consistent results independent of operator technique. Quick development times and uniform visualization properties provide lot-to-lot consistency and reduce seasonal variability in chromatography.

Silica Gel H & HF UNIPLATES contain no calcium sulfate binder. The adsorbent contains a small amount of colloidal silica which aids in the adherence to the glass plate.

PREPARATIVE PLATES

Preparative TLC plates have adsorbent layers thicker than the 250 micron layers normally used for analytical separations. Thus, preparative plates can be used for separation of larger quantities of materials.The loading capacity for a given degree of sample component resolution increases roughly as the square root of the increased adsorbent layer thickness.

In preparative TLC, materials to be separated are often applied as long streaks rather than spots. After development, specific compounds may be recovered by scraping the adsorbent layers from the plate in the region of interest and eluting the separated material from the adsorbent using a strong solvent.·

• Thicker layers for higher capacity·
• Full range of plate sizes·
• Prep-scored option for convenient zone location·
• Available with preadsorbent sample loading zone·
• Calcium sulfate binder-soft later for easy scraping.