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  • A PAT Application for Designing Quality into a Test System: Incubator Design Qualification of BioTek ELx808i & TECAN Sunrise Relative to LAL-endotoxin Kinetic Measurements and the Temperature Variability Effect on the Reaction Time Deviations, and Consequently on the Results.

    Visual Representation in Power Point

    Experimental Data in Excel Format

    Summary Interpretation:

    1. Incubator design of the microplate photometers affects the LAL-endotoxin test results (see, Fig. 11 - 36),
    2. Both TECAN Sunrise BioTek ELx808i have met their respective specifications in empty state for temperature accuracy & temperature variability (see, Fig. 1 - 10),
    3. TECAN Sunrise has shown better temperature distribution than BioTek ELx808i, if the well-to-well temperature measurements are compared of the test solutions during the LAL-endotoxin Kinetic Test Protocol (see, Fig. 40 - 47),
    4. The dynamic effects of evaporation from the test solutions affected the temperature variability (see, Fig. 48 - 59),
    5. Turbidimetric LAL reagents from the various manufacturers behaved differently to the temperature variability; - Cambrex's LAL reagent - Manufacturer B - has shown the greatest sensitivity and the largest deviation relative to temperature induced changes in the reaction time (see, Fig. 34 - 36),
    6. Standard & sample topology can contribute to the inaccuracy of the results,
    7. The general application of the Power Curve is not supported by the experiments,
    8. Opulus Temperature Correction (OTC) can improve the results significantly (see, Fig. 37 vs. 38),
    9. Temperature of the test solutions during kinetic runs, just as pH, is a Critical Control Point in the Method Development & Method Validation.
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