Ahlstrom 2228-4657 Chromatography Blotting Paper (Cotton), Grade 222, 46 x 57 cm, 100/pk

Grade 222 blotting paper is widely used for electrophoresis, gel transfer, and chromatography workflows. It is especially effective as a blotter in gel transfer “sandwich” setups where consistent buffer movement is required.

This paper is a medium-thick, high-flow cotton media with a smooth, uniform structure that promotes continuous buffer contact across the gel and membrane. These properties help ensure reliable and even transfer results.

Typical specifications for the 2228-4657 include:

Grade: 222
Sheet size: 46 × 57 cm
Thickness: ~0.83 mm
Absorption speed: ~220 mm/30 min
Pack size: 100 sheets

These characteristics support high absorbency and rapid wicking in laboratory workflows.

Ahlstrom chromatography and blotting papers are produced from high-purity cotton linters and manufactured without additives. This helps minimize contamination and supports consistent analytical performance in sensitive applications.

This grade is commonly used by molecular biology labs, electrophoresis facilities, academic research centers, and biotechnology teams that require dependable buffer transfer and high absorbency during protein or nucleic acid workflows.