Determining the Levels of Four Phenylethanoid Glycosides and Five Triterpene Acids in Liuwei Dihuang Capsule Using Solid Phase Extraction with HPLC-UV

<div>Comparison of HPLC chromatograms obtained using different SPE methods for analysis four phenylethanoid glycosides in LDC. (1) Purpureaside C, (2) jionoside A1, (3) acteoside, and (4) isoacteoside.</div>

Journal of Analytical Methods in Chemistry

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Figure 4: Determining the Levels of Four Phenylethanoid Glycosides and Five Triterpene Acids in Liuwei Dihuang Capsule Using Solid Phase Extraction with HPLC-UV 

Figure 4 | Determining the Levels of Four Phenylethanoid Glycosides and Five Triterpene Acids in Liuwei Dihuang Capsule Using Solid Phase Extraction with HPLC-UV 