Independent analytical testing. Results apply only to the sample received, for research use only.

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Theoretical plates

Seen on system suitability records.

Definition

A dimensionless measure of column efficiency derived from peak width relative to retention. A falling plate count across a sequence is an early indicator that a column is degrading.

Related terms

System suitability
The set of checks a run must pass before any of its results are reportable: blanks, replicate standards, resolution, symmetry, calibration performance, recovery.

About chromatography

Separation, detection, and the figures that come out of a chromatographic run.

Reversed-phase chromatographyGradientRetention timeArea purityIntegrationBaselineResolutionCo-elutionTailing factorDetection wavelengthChromophoreIon pairingOrthogonal methodSignal-to-noise ratio

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