Quality Control of Danggui Buxue Tang, a Traditional Chinese Medicine Decoction, by -NMR Metabolic Profiling
Figure 5
-NMR spectra of Danggui Buxue Tang and commercial Danggui Buxue Tang. (a)By visual inspection, DBT has overall higher peak intensity than commercial DBT. Overall features of both spectra are very similar. (b) Resonance of lactose was indicated. Commercial DBT is represented in red line, while DBT, AR, ASR, and AR + ASR are all represented in back lines. This shows that lactose is present in commercial DBT but not in any of our samples, including the raw materials.
