21. Hexanes are commonly used in chromatography as a non-polar solvent. 22. Gas chromatography and mid-infrared spectroscopy are other methods in use. 23. This method is one of the more reliable chromatography techniques. 24. Gel permeation chromatography is conducted almost exclusively in chromatography columns. 25. Gel permeation chromatography is conducted almost exclusively in chromatography columns. 26. German graduate student Fritz Prior developed solid state gas chromatography in 1947. 27. Brucine can be detected and quantified using liquid chromatography -mass spectrometry. 28. These include methods based on gel electrophoresis, chromatography and mass spectrometry. 29. In 1903, Mikhail Tsvet invented chromatography , an important analytic technique. 30. Following it in 1980, was a similar method for cation chromatography .
