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

<div>Representative HPLC chromatograms of mixed standards and the ZTP extract at 260 nm. (a) ZTP extract (sample 1209051H); (b) mixed standards of the 3 chemical constituents. Peaks: protocatechuic acid, ferulic acid, and ligustilide.</div>

Journal of Analytical Methods in Chemistry

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Figure 1: Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography 

Figure 1 | Qualitative and Quantitative Analysis of Volatile Components of Zhengtian Pills Using Gas Chromatography Mass Spectrometry and Ultra-High Performance Liquid Chromatography 