7. (3%) Indicate the order in which the following compounds wound be eluted from an HPLC column containing a reversed-phase packing: acetone, dichloroethane, acetamide.

1. (5%) A new automated procedure for determining glucose in serum (Method A) is to be compared with the established method (Method B). Both methods are performed on serum from the sarne six patients to eliminate patient-to-patient variability. Do the following results confirm a difference in the two methods at the 95% confidence level?

7. (3%) Indicate the order in which the following compounds wound be eluted from an HPLC column containing a reversed-phase packing: acetone, dichloroethane, acetamide.

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