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Lab Exercise: Qualitative Data Analysis

Peak Purity

Major Peaks Peak 1 Peak 2 Peak 3

Retention Time

Calculated Threshold

Purity Factor

Spectral Options – Wavelength Range

Spectral Options – Spectra per Peak: Threshold

Does the ChemStation indicate purity or impurity?

In your opinion, does the spectral overlay indicate

impurity?

In your opinion, does the relationship between the

similarity and threshold curves indicate impurity?

Do the number of diamonds in the red band

indicate impurity?

Does the relationship between the purity factor and

calculated threshold indicate impurity?

Do you think this peak is impure?

6) Close the purity display with the tool found at the lower right.

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Agilent Technologies All Guia de Resolução de Problemas Página 45