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. Author manuscript; available in PMC: 2012 Dec 13.
Published in final edited form as: Carbohydr Res. 2011 Sep 24;346(17):2792–2800. doi: 10.1016/j.carres.2011.09.020

Figure 2.

Figure 2

Representative comparison of analytical HPLC chromatograms from various RPIP conditions eluting persulfated N-cbz neomycin. Each chromatogram was generated from a 20 min. gradient increase in percent ACN, and the ending percent ACN was then maintained isocratic for an additional 22 min. (A) 10–80% ACN; 10 mM ammonium acetate, 10 mM TMAI, pH = 7.3. (B) 10–80% ACN; 10 mM ammonium acetate, 0.8 mM TMAI, pH = 5.0. (C) 10–80% ACN; 10 mM ammonium acetate, 0.8 mM TMAI, pH = 7.4. (D) 10–80% ACN; 10 mM ammonium acetate, 0.8 mM TMAI, pH = 8.0. (E) 10–70% ACN; 10 mM ammonium acetate, 10 mM TBAI, pH = 7.3. (F) 10–30% ACN; 10 mM ammonium acetate, 0.8 mM TEA, pH = 8.3.