Ahlstrom 2228-0710 Chromatography Blotting Paper (Cotton), Grade 222, 7 x 10 cm, 100/pk

Grade 222 paper is designed for chromatography, electrophoresis, and blotting applications, including protein and nucleic acid transfers. It is commonly used as a buffer transfer medium in gel blotting techniques such as Western, Northern, and Southern blots.

This paper has a medium thickness with very high flow rate, allowing efficient buffer movement during electrophoresis and transfer processes. Its uniform texture ensures consistent contact across gels and membranes, improving transfer efficiency.

This product features 7 × 10 cm sheets, ~0.83 mm thickness, and an absorption speed of about 220 mm/30 min. It is supplied in packs of 100 sheets, making it suitable for routine laboratory use.

The paper is made from high-purity cotton linters (alpha-cellulose), ensuring low contamination and consistent performance. This purity is essential for sensitive analytical workflows where reliable results are required.

Grade 222 paper provides controlled absorption, strong wet strength, and uniform wicking, which helps maintain consistent buffer flow and reduces variability between runs. This leads to more reproducible and accurate experimental results.