Clarifies the difference between LER and traditional "Inhibition or Enhancement."

If LER is found, develop a robust demasking protocol that can be consistently replicated in QC.

Providing a robust framework for developing product-specific studies, including recommendations on endotoxin sources (e.g., RSE, CSE), spiking, and storage conditions.

This is where the PDF shines. If your target pH degrades your product, TR-82 validates the use of chemical chaperones (e.g., Arginine, Sucrose, or Polysorbate) added post-elution. The report provides a decision tree for determining whether to add these agents before the low pH hold (to stabilize the product) or after (to avoid protecting the virus). A critical no-go: Do not use glycine below pH 4.0, as it can catalyze aggregation.

While TR-82 is essential, it works best alongside other PDA reports. Consider these as a complete bioprocessing library: