These downloadable videos and animations are part of the multimedia package Stuff and Substance, developed by the Gatsby Science Enhancement Programme (SEP). They can be used to develop ideas relating to paper chromatography as a method for separating mixtures.
Paper chromatography can be used to separate mixtures of substances not amenable to methods such as filtration and distillation. The video shows the separation of three different coloured substances in black food colouring using paper chromatography. The animation shows how the moving solvents ‘drag’ the substances apart.
These video and animation files form part of the resources in the section Chromatography in the Stuff and Substance multimedia package, which provides a series of interactive pages that can be used by teachers or students in the classroom.
Please note: From 2021, Adobe has discontinued support for Flash player and as a result some interactive files may no longer be playable. As an alternative method to accessing these files a group of volunteers passionate about the preservation of internet history have created project Ruffle (https://ruffle.rs/). Ruffle is an entirely open source project that you can download and run many interactive Flash resources. For further information regarding STEM Learning’s policy for website content, please visit our terms and conditions page.
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