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How does the dielectric constants relate to the polarity of the compounds separated and obtained via column chromatography?
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- Chromatography is a separation technique. What is the physical or chemical basis for separation of compounds during thin layer chromatography?Column chromatography is also very useful for separating mixtures of organic compounds that are not coloured. Briefly explain how you could use column chromatography for the separation of a colourless mixture, and how you could identify your separated compounds.what is chromatography? Explain different types of chromatography and explain how to seperate compounds. indicate stationary phase mobile phase.
- In anion exchange chromatography explain the chemistry of the suppressor system when a sample containing sodium nitrate is analysed using a sodium carbonate eluent.Why chromatography is an important tool for analysis of organic compounds?Use a suitable model to explain how separation and identification of a mixture of organic compounds can be achieved with a thin layer chromatographic (TLC) technique.
- A chromatographic column is eluted with a solution containing a mixture of two components, X and Y. The chemical affinity of X for the stationary phase is less than that of Y and the chemical affinity for X for the mobile is greater than that of Y. Which substance will be eluted first? Explain your answer.Differentiate normal phase chromatography from reverse phase chromatography. From which of the two governs the thin layer chromatography of plant pigments? How do you say so?Suggest two possible applications for paper chromatography other than the separation of dyes or the identification of metal ions.
- What kind of information does a mass spectrometer detector give in gas chromatography that is useful for qualitative analysis? For quantitative analysis?Ion exchange chromatography can be used to separate a mixture of cations and anions, true or false?Can paper chromatography be used to separate and identify very volatile substances? Why? Please explain comprehensively.