When do you need to blank a spectrophotometer (Spec 20)? After completing all data collection. After the wavelength is changed. Before running a set of samples. Between each sample, even if the wavelength remains the same.

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When do you need to blank a spectrophotometer (Spec 20)?
After completing all data collection.
After the wavelength is changed.
Before running a set of samples.
Between each sample, even if the wavelength remains the same.
Transcribed Image Text:When do you need to blank a spectrophotometer (Spec 20)? After completing all data collection. After the wavelength is changed. Before running a set of samples. Between each sample, even if the wavelength remains the same.
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