Miles Scientific Analtech Silica Gel H (Binder-free adsorbent) Prep TLC Plates, Glass-backed, 500 um, 20 x 20cm, 25/Pk - P10012

Glass-backed Prep TLC Plates

Miles Scientific Analtech Brand Silica Gel H Prep Thin Layer Chromatography (TLC) Plates - Glass-backed - 500µm thickness - 20x20cm - 25 plates per box

Product Number: P10012

Weight: 15.10 LBS

• H - Binder-free adsorbent

Analtech Brand Silica Gel H / HF TLC Plates

• Silica Pore: 60Å
• Silica Particle Size: 19 μm average
• Binder: none
• Hardness: 1-8

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. 

Acceptable Solvents:

All typical chromatography solvents (20% water max) Visualization Techniques: Compatible with essentially all visualization reagents, even sulfuric acid charring. Spray reagent only. Dipping not recommended.

General Description:

Very soft surface as no binder is used to adhere the layer to the glass backing. Requires extra caution during use to prevent damage to the layer, which would affect chromatography. However, it is sometimes required when the separation being run is sensitive to any materials other than silica gel in the chromatographic process. Compatible with most mobile phases except water in excess of about 20%. Dip visualization procedures not recommended, but plates do tolerate gentle spray techniques.

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 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.