Research Article

Gradual Optimization of Headspace Solid-Phase Microextraction Conditions of Volatiles in Pepper Chicken Soup Combined with Gas Chromatography-Mass Spectrometry and Principal Component Analysis

Figure 2

Radar plot of extraction effect on extracting six components by the five fibers. Compounds which are assessed in six categories are marked with ā€œā€ to dedicate significant level in the same group. Difference is significant (p<0.01); Difference is extremely significant (p<0.001).