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Relative Retention

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Retention times for several organic compounds separated on a gas chromographic column are given below:

Compound tR(seconds)
Air 75
Pentane 190
Heptane 350
2-Pentene 275

a. Calculate the relative retention of 2-Pentene with respect to pentane.
b. Calculate the relative retention of heptane with respect to pentane.

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First we must define the relative retention time. Relative retention time is the ratio of the retention time of a given compound and a ...

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