what kinds of mixture components can't be seperated by chromatography
Answers
Answer:
There are several types of chromatography. In gas-liquid chromatography the main requirement is that the analyte is volatile. For this reason it is often used to separate organic molecules. High molecular weight biopolymers are not going to work. On the the other hand some molecular inorganics (say SF6) can be analyzed. You can’t put a lot of material thru a GLC so you would mostly use it for analysis rather than purifying and isolating a synthetic product.
HPLC (high performance liquid chromatography) involves a liquid mobile phase and solid stationary phase. So the main requirement is that the analyte be soluble in the mobile phase. HPLC is suitable for purifying synthetic products as is the related SFC (supercritical fluid chromatography).
There are other types of chromatography such as ion chromatography (which I have never personally used). It is used exclusively for inorganics and in an analytical rather than preparative mode.
Answer:
Paper chromatography is a method for separating dissolved substances from one another. It is often used when the dissolved substances are coloured, such as inks, food colourings and plant dyes.
Explanation:
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