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Explainer
Linearity across dilutions
BactoBox® shows great linearity between cells/mL and the dilution factor. This linearity covers the entire range given by the Limit of detection.
The table below shows how BactoBox® performs across various particle types. Note that all R2 values are very close to 1, which indicates strong linearity across the tested range.
Particle type
Tested range (1/mL)
Linearity with dilution factor
Staphyloccus epidermidis
30 000–5 000 000
R2=0.9975
1 µm silica microspheres
1 000 000–5 000 000
R2=0.9995
The below figure illustrates the linearity for the Staphylococcus epidermidis linearity-response test.
S. epidermidis linearity response. Concentration of cells for the same primary sample measured at different dilution factors. Each data point represents arithmetic mean of technical triplicates. Error bars represent standard deviation.
