Recent content by frankmp40

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    Estimate Microbial Number: MPN Method for CFU

    I think the relationship between tube2 and tube3 is a factor of ten. I would prefer their average as it can minimize errors.
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    Estimate Microbial Number: MPN Method for CFU

    I mean now I have two estimation: First one is No. of coliform = 39*dilution factor 1 The second one is No. of coliform = 241*dilution factor 2 Which estimation should I use, or I need to take the average of the two?
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    Estimate Microbial Number: MPN Method for CFU

    Hi, I just want to know should I only use counts in tube3 to estimate microbial number, or the average of tube2 and tube3 estimation. Thank you!
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    Negative values in calibration curve

    Can I see the concentration is zero when it becomes slightly negative
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    Negative values in calibration curve

    I mean how to explain
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    Negative values in calibration curve

    Hi I just wondering how to report negative values cuased by non-zero intersection. For example, when the absorbance<0.037 in the figure, the concentration would be negative. Thank you!
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