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 āā to dedicate significant level in the same group. Difference is significant (p<0.01); Difference is extremely significant (p<0.001).