Medicinal Plant Resources of Campanulaceae in Anhui;

Wild Campanulaceae Plant Resources and Evaluation in Taihang Mountain Area of Henan Province;

Microstructure Characteristics of Seed from 11 Species of Codonopsis and Campanumoea(Campanulaceae)

Studies on the Flora of the Wild Campanulaceae in Hebei Province;

Processing technology of balsam pear and Platycodon grandiflorum healthy compound beverage;

Study on the Spermicidal Effect of the Extracted Fluid of Platycodon Grandiflorum In Vitro;

Principal Component and Cluster Analysis of Platycodon grandiflorum Germplasm;

Processing technology of Platycodon root health pichle of low salt;

With Platycodon root as experiment material, on the base of single factor experiments (extraction time, extraction temperature and so on), then through the experimental design of response surface methology, the conditions of extraction are studied.

With Platycodon root as experiment material and Platycodon extract,sucrose,citric acid and β-cycloheptaamylose as experiment factors,on the base of Response Surface Methodology Analysis,researches on optimal prescription of Platycodon health protection beverage were conducted.

Determination of contents of platycodin D in Radix Platycodonis from different plot and different areas by HPLC;

Studies on Fingerprint of Radix Platycodonis by Polyacryamide Gel Electrophoresis;

Evaluation Studies on Uncertainty for Determination of the Total Saponin in Radix Platycodonis by Weight Method;