what is difference between qualitative and preparative TLC?
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In analytical chromatography, the eluent (mobile phase) passes out as waste, but in preparative chromatography, the eluent is passed on to a fraction collector.
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Explanation:
The main difference between preparative and analytical chromatography is that the main purpose of preparative chromatography is to isolate and purify a reasonable quantity of a specific substance from a sample whereas the main purpose of analytical chromatography is to separate the components of a sample.
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