Point of Sampling Kit and Method for Assessing Endotoxin Contamination
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United States of America Patent
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Issued Date -
Oct 27, 2022
app pub date -
Apr 21, 2022
filing date -
Apr 21, 2022
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Abstract
A point-of-use kit is designed for optically detecting and quantifying bacterial endotoxin by employing specific formulations of Limulus amebocyte lysate (LAL), each formulation designed to optimize results with different sample classes. Kits are pre-certified for use with a variety of environmental, industrial, and clinical samples, each sample category having a unique kit design and containing a unique lysate reagent formulation. Pre-certification transfers time and reagent consuming tasks, such as assessment of sample compatibility and sample effect on reagent sensitivity to endotoxin from the user to the kit producer. A fixed dilution/sample treatment is employed, eliminating the need for a comparative water standard and for a sample positive control. The kit has LAL reagent prepackaged in dry polyethylene capped tubes, which retains reagent shelf life and optical clarity for accurate and reproducible results using a portable spectrophotometer/optical reader.
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