By tracystim on Wednesday, September 5, 2001 - 07:53 pm:
Despite my best efforts I am unable to answer a question for my chemistry course. Could someone please answer in rather simple terms why samples can often be separated into their components by chromatography??
By Anonymous on Monday, September 10, 2001 - 10:13 am:
Can I assume that this is separation by gas chromatography? or by other type of chromatography?
By Anonymous on Wednesday, September 12, 2001 - 09:14 am:
Different components of the sample mixture interact differntly with the column's stationary phase. The stronger a component interacts with the stationary phase, the longer it travels through the column, and the later it arrives to the end of the column or (using the chromatographic terminology) the longer it is retained in the column. Different retention of different components of the mixture in the column is the cause of the separation.
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