What Endotoxin Screening Means in Laboratory Documentation
Learn what bacterial endotoxin screening measures, how units and method limits matter, and what the result cannot establish by itself.
The purpose of endotoxin screening
Endotoxins are lipopolysaccharide components associated with the outer membrane of Gram-negative bacteria. Laboratory screening is designed to detect or quantify endotoxin activity under specified test conditions.
Reports may use endotoxin units and may express a result per vial, per milligram or per millilitre. The basis and sample preparation must be clear before results can be compared.
Method limits and interference
A report should identify the method or platform, relevant dilution and reporting limit. Sample properties can inhibit or enhance some assays, so suitability and interference controls are important parts of method confidence.
A result below a reporting threshold means the assay did not measure activity above that threshold under the stated conditions. It is not the same as proving absolute absence.
Do not confuse endotoxin with sterility
Endotoxin screening and microbiological sterility testing address different attributes. A sample may require separate procedures depending on the research protocol and risk assessment.
The presence of a result on a COA does not authorise human or veterinary use. JGPep+ products are supplied only for laboratory research.
Research use only. Not for human or veterinary use.