Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography

<div>The total ion chromatogram (TIC) of ZTPs using different solvents and extraction methods: (a) ethyl acetate extraction by reflux method, (b) ethyl acetate extraction by ultrasonic wave, (c) ether extraction by ultrasonic wave, and (d) petroleum ether extraction by ultrasonic wave.</div>

Journal of Analytical Methods in Chemistry

fig2

Figure 2

Figure 2: Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography 

Figure 2 | Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography 