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Comparison of the HMQC spectra of pure heparin, OSCS-contaminated heparin, OSCS, persulfonated GAG waste, and persulfonated tank bottom. (A) HMQC of pure heparin(red), OSCS-contaminated heparin (blue), isolated OSCS contaminant (green). (B) HMQC of pure heparin (red), OSCS-contaminated heparin (blue), and persulfonated GAG waste (cyan). (C) HMQC of pure heparin (red), OSCS-contaminated heparin (blue), and persulfonated tank bottom (yellow).
