Preparative TLC is used for purification and isolation of analytes from impurities on a larger scale than traditional TLC.

Prep TLC is a fast, inexpensive, and useful technique for the purification of small quantities of sample. It permits a rapid separation and isolation/recovery of components in a reaction mixture.

For preparative purposes, different layer thicknesses are available (500 µm, 1000 µm, and 2000 µm).

For 2000 µm preparative layers a slightly coarser material is used.

The isolated spots can be scraped from a prep plate, collected, and used for further downstream analysis.


  • Separation and purification from milligram to gram quantities
  • Thicker layers than classical TLC for higher sample loading volumes
  • Rapid and cost-effective identification/isolation of compounds from a reaction
  • Offline qualitative evaluation of purity during a process
Prep TLC Plates


TLC Loading and Resolution Guide

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Filtering funnels have a cylinder that is separated from the funnel by a perforated plate or a fritted glass disc. Also known as Buchner funnels or Hirsch funnels, each uses vacuum suction that pulls liquid through the filter into the cylinder.

Work without risk for your filtrate and eliminate the need to clean sintered glass filters with mineral acids using these disposable filtering funnels. Available in various sizes, you can use these cost-effective filtering funnels more than once or dispose of them after each use.

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