A Direct Sulfation Process of a Marine Polysaccharide in Ionic Liquid

<div><sup>1</sup>H NMR spectra of GY785 DR (a) and GY785 DRS (a′) and <sup>13</sup>C J-modulated NMR spectra of GY785 DR (b) and GY785 DRS (b′).</div>

BioMed Research International

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Figure 4

Figure 4: A Direct Sulfation Process of a Marine Polysaccharide in Ionic Liquid 