Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
1H NMR spectra displaying the polyphenolic region (7.0–5.5 ppm) used for quantification of Fucus vesiculosus (A), Ascophyllum nodosum (B), Saccharina latissima (C), Laminaria digitata (D), and Laminaria hyperborea M20 (E). Signals labelled with asterisk (*) were deselected based on 2D NMR prior to quantification.
