Mikhail Tswett, a botanist who was interested in investigating and separating plant pigments, developed and explained the techniques that laid the groundwork for modern chromatographic methods. ... It would be ten more years before chromatography was widely accepted as a useful analytical method. ... In 1941, they developed a liquid-liquid partition chromatography method in which two solvents moved in opposite directions through a tube. ... The technique was slow, though, and has now been replaced by faster, more efficient methods. ... Within three years, commercial GLC systems were availab...

• Word Count: 2140
• Approx Pages: 9
• Has Bibliography
• Grade Level: Undergraduate