____________________ Is the Volume Between the Point at Which the Solvents

question 9

Multiple Choice

____________________ is the volume between the point at which the solvents are mixed and the beginning of the column.Which is NOT true for dwell volume and dwell time?

• A)If the dwell time is 5 minutes,a solvent change initiated at 9 minutes does not reach the column until 14 minutes.
• B)A difference in dwell volumes is the main reason why gradient separations do not always transfer well between instruments.
• C)Dwell volume is the volume between where solvents are mixed and the beginning of the column.
• D)The product of the dwell volume and the flow rate is the dwell time.
• E)It is helpful to indicate the dwell volume when reporting a gradient separation.

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