A molecularly imprinted polymer (MIP) using benzoic acid as template molecule, 4-vinyl pyridine (4-VP) as functional monomer, ethylene dimethacrylate (EDMA) as cross-linker, was prepared by bulk polymerization. The needle-type gas concentrator was developed using the MIP as adsorption medium. The device was coupled with gas chromatography (GC) for the analysis of volatile organic compounds (VOCs). The effect of polymerization conditions on adsorption property, such as polymerization time, ratio of the reagents, pre-polymerization time, type of solvents, type of template molecules, has been evaluated. The results of gas chromatographic analysis demonstrated that the optimum conditions for getting the best adsorption performance of the synthesized were polymerization time 6 h at 60 ℃, the ratio of the reagents (template molecule : functional monomer : cross-linker) 1∶ 4∶ 20, pre-polymerization time of 3 h, acetonitrile as solvent, benzoic acid as template.

With the course of Clinical Skill Training as an example, this article integrates hierarchical teaching and peer teaching, adopts the problem-based learning (PBL) teaching model and famous traditional Chinese medicine (TCM) teaching clinics, connects the assessment criteria for standardized residency training, and pays attention to cultivating a reasonable teacher team, so as to improve the overall teaching quality of the course and the enthusiasm for the course among students. The application of the teacher inheritance model combined with case-based learning (CBL) teaching can help medical students to learn and inherit the clinical experience and skills, communication methods, and academic ideas of famous old TCM doctors and inherit and carry forward the essence of TCM culture. At the same time, CBL teaching is adopted to promote the integrated and people-oriented teaching concept of TCM, with medical students as the main body and teachers as the supporting role. The training with this model can effectively improve the clinical skills and development potential of TCM students.