Experimental Section
MIL-101 was synthesized according to the method of Frey et al.[24]
Details for the synthesis of MIL-101, the postsynthetic modification
of MIL-101, and the pretreatment of the capillary column are
described in the Supporting Information. MIL-101 and pyridinegrafted
MIL-101 were coated onto the pretreated capillary column by
a dynamic coating method as follows.[12e] A 0.5 mL suspension of
MIL-101 or pyridine-grafted MIL-101 (2 mgmL1) in ethanol was
first filled as a plug into the capillary column under gas pressure, and
then pushed through the column at a rate of 40 cmmin1 to leave a
wet coating layer on the inner wall of the capillary column. To avoid
acceleration of the solution plug near the end of the column, a 1 m