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CE analysis of heparin mixed with OSCS and OS tank bottom or OS GAG waste. (Top) CE analysis of a 10% wt/wt spike of oversulfated (OS) tank bottom material in 50 mg/mL USP reference standard (heparin +OSCS). Consistent with the NMR analysis, OS tank bottom is clearly distinguishable from either OSCS or heparin. (Bottom) CE analysis of OS GAG waste spiked into the same standard.
