Indicator & Chromatography Papers

Chromatography paper is a highly absorbent, pure cellulose sheet used for paper chromatography, drawing a solvent upward by capillary action to separate dissolved pigments, dyes, or compounds into distinct bands. The same absorbent paper is also used in blotting techniques for molecular biology work, alongside specialty indicator papers such as cobalt chloride paper, which changes colour to detect moisture and humidity.

SmartLabs stocks chromatography and indicator papers in South Africa for schools, research laboratories, and industrial testing, covering everything from a first pigment-separation practical to blotting and moisture detection in more advanced settings. These simple, calibration-free papers remain a reliable, low-cost tool for visual diagnostic work on any bench.

Chromatography paper strip separating ink pigments into colour bands

What is chromatography and indicator paper?

Chromatography paper is a highly absorbent, pure cellulose sheet used for paper chromatography, drawing a solvent steadily upward by capillary action to separate dissolved pigments, dyes, or compounds into distinct bands. The same absorbent paper is also used for blotting techniques in molecular biology work.

SmartLabs also stocks specialty indicator papers such as cobalt chloride paper, which changes colour to detect moisture and humidity. Both product types are simple, calibration-free diagnostic tools used across school science classrooms, research laboratories, and industrial testing facilities in South Africa.

Common uses of chromatography and indicator paper in the lab

Absorbent, chemically reactive papers cover separation and diagnostic work across the lab.

  • Student watching ink separate on chromatography paper in classroom

    Classroom pigment separation

    Watching ink separate into its component colours on a paper strip is a classic, visual way to introduce paper chromatography in a school lab.

  • Researcher using chromatography paper for a gel blot transfer technique

    Molecular biology blotting

    Highly absorbent chromatography paper is used in gel transfer and blotting techniques where controlled, even liquid absorption is essential.

  • Cobalt chloride paper changing colour to detect moisture

    Moisture and humidity detection

    Cobalt chloride paper shifts from blue to pink on contact with moisture, giving a fast, visual check for water vapour or damp conditions.

  • Container of indicator paper sheets on a lab bench

    Bulk lab stock

    Sold in sealed containers of 100 sheets, indicator papers stay protected from moisture in storage until they are needed at the bench.