LC-NMR Technique in the Analysis of Phytosterols in Natural Extracts
Figure 4
On-flow SEC-NMR measurement of the stinging nettle extract, whole spectrum (a) and a detail of the upfield region (b). FFA: free fatty acid, TG: triglycerides, PP: polyphenolic compounds, HMDSS: hexamethyldisilane, FS: free phytosterols, CS:conjugated phytosterols, and a: silicone grease.
