MNTA - This might be the Patent referred to that detects heparin contaminants -
EVALUATING HEPARIN PREPARATIONS FOR PHARMACEUTICAL USE
The disclosure features methods of analyzing preparations of heparin, and materials derived from heparin using strong anion exchange high performance liquid chromatography; The invention relates to methods of analyzing samples heparin, and materials derived from heparin.
The method can include making a decision, e.g., to classify, select, accept or discard, release or withhold, process into a drug product, ship, move to a different location, formulate, label, package, release into commerce, sell or offer for sale the preparation, based, at least in part, upon the analysis.