Flashcards
PAL chromatography
Cards in this deck (11)
- 1What is chromatography?A technique for the separation of a mixture
- 2What are the stationary/mobile phases?Stationary - solid component
Mobile phase - Liquid or gas component - 3Why does the mixture separate?Relative attraction to the solution
- 4In TLC (thin layer chromatography), what is the glass slide coated with?Silica gel
- 5What is retention time?The time taken for the mixture to get through the column or to the detector
- 6Example of stationary phase?Silica Gel
- 7Purpose of mobile phase?To carry the mixture through the stationary phase
- 8In a chromatogram, what does the area under the peak resemble?The amount of substance/concentration
- 9What does resolved peaks mean?Define and easy to see
- 102 benefits of HPLC (High performance liquid chromatography) over column chromatography-Faster
-More accurate
-Stationary phase has greater surface area - 111 application of HPLC in food and drinkcaffeine and sugar levels in drink
vitamin levels in food
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- Flashcards on PAL chromatography, created by mikeychapman on 30/09/2014.
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- mikeychapman
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