[Comparison study of different methods for extracting volatile oil from bergamot].

Objective: To test different methods for extracting volatile oil from bergamot.

Methods: The determination of bergapten was carried out by RP-HPLC. Four different ways of organic solvent extraction, steam-input distillation, distillation of the material mixed with water and press extraction were compared.

[Application of HATR-FTIR spectroscopy combined with cluster analysis to identification of Cuscuta chinensis lam and its unofficial varieties].

Horizontal attenuated total reflectance Fourier transform infrared spectroscopy was used to identify Cuscuta chinensis lam. samples directly and their chemical differences were compared. In addition to FTIRS/cluster analysis, the kindredship between the different varieties of official and unofficial Cuscuta chinensis lam was studied.