In chromatography, retention time means…
A) length of time it takes for the molecule to enter the column
B) length of time it takes for the molecule to pass through 5% of the column's length
C) length of time it takes for the molecule to pass through a column
D) length of time it takes for the molecule to pass through 50% of the column's length
E) length of time it takes for the molecule to pass through 25% of the column's length
Correct Answer:
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