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BBC Radio 4 is a radio channel that started transmitting on the 30th September 1967. It replaced BBC Home Service.

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Melvyn Bragg and guests discuss the ideas, people and events that have shaped our world.

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Melvyn Bragg

Andrea Sella

Apryll Stalcup

Leon Barron

In Our Time: Chromatography

Chromatography

04/02/2016

BBC Radio 4 - In Our Time, Chromatography

Melvyn Bragg and guests discuss the origins, development and uses of chromatography.

Melvyn Bragg and guests discuss chromatography as a means of separating mixtures, widely used when testing water and air quality, in forensics and drug manufacture.

Melvyn Bragg and guests discuss the origins, development and uses of chromatography. In its basic form, it is familiar to generations of schoolchildren who put a spot of ink at the bottom of a strip of paper, dip it in water and then watch the pigments spread upwards, revealing their separate colours. Chemists in the 19th Century started to find new ways to separate mixtures and their work was taken further by Mikhail Tsvet, a Russian-Italian scientist who is often credited with inventing chromatography in 1900. The technique has become so widely used, it is now an integral part of testing the quality of air and water, the levels of drugs in athletes, in forensics and in the preparation of pharmaceuticals.

With

Andrea Sella
Professor of Chemistry at University College London

Apryll Stalcup
Professor of Chemical Sciences at Dublin City University

And

Leon Barron
Senior Lecturer in Forensic Science at King's College London.

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