[Spectroscopy study on the selectively distinguishing cefalexin with the molecular imprinted polymer].

Molecular imprinted polymers of cefalexin (CFL) were prepared by non-covalent molecular imprinting technique in the present paper. Using CFL as template molecule, acrylamide (AM) or methacrylic acid (MAA) as functional monomer, ethylene dimethacrylate (EGDMA) as cross-linker, AIBN as initiator and methanol as porogen agent, different molecularly imprinted polymers (MIPs) of CFL were synthesized by bulk or suspension polymerization as synthetic method. The intermolecular action between AM and CFL was investigated by UV and IR spectrophotometric analysis, and the results indicated that polymerizing functional monomer AM could bond effectively with template molecule CFL.

N-(4-Nitro-pheneth-yl)formamide.

The title compound, C(9)H(10)N(2)O(3), was synthesized by direct N-formyl-ation of 4-nitro-phenethyl-amine hydro-chloride with formic acid and sodium formate in the absence of catalyst and solvent. In the crystal structure, mol-ecules are linked by inter-molecular N-H⋯O hydrogen-bond inter-actions into chains parallel to the a axis.