How to calibrate a spectrometer with saltwater

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Why is a spectrometer calibrated with saltwater before taking the measurement of an E. coli cell concentration? Do you always calibrate a spectrometer with saltwater?

Reference no: EM13117266

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How to calibrate a spectrometer with saltwater : Why is a spectrometer calibrated with saltwater before taking the measurement of an E. coli cell concentration? Do you always calibrate a spectrometer with saltwater?
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