Analysis and characterization of heparin impurities

Area of Science:

• Analytical Chemistry
• Pharmacology
• Biochemistry

Background:

• The 2007-2008 heparin adulteration crisis highlighted the need for robust analytical methods to ensure drug safety.
• Oversulfated chondroitin sulfate (OSCS) contamination led to significant health issues and regulatory changes.
• Pharmacopeia monographs for heparin were revised, and regulatory bodies recommended new analytical approaches.

Purpose of the Study:

• To review and summarize recent advancements in analytical techniques for heparin impurity analysis.
• To provide an overview of methods for heparin isolation, digestion, and contaminant detection.
• To discuss the application of various spectroscopic and separation techniques in ensuring heparin purity.

Main Methods:

• Review of scientific literature on heparin analysis.
• Discussion of heparin isolation and digestion protocols.
• Summary of analytical methods including spectroscopy (near-IR, Raman, NMR), sensors, electrophoresis, and chromatography.

Main Results:

• Development of diverse and innovative analytical approaches for heparin purity assessment.
• Identification and characterization of heparin contaminants, notably OSCS.
• Demonstration of sensitive separation, detection, and structural characterization capabilities.

Conclusions:

• The analytical chemistry community has rapidly developed advanced methods to address heparin adulteration.
• These new techniques are essential for safeguarding the quality and safety of heparin products.
• Continued development and application of these methods are vital for regulatory compliance and patient safety.