Tip 37: Working with misidentified chromatographic peaks due to retention time shifts, part 2: The Manually Identify Peaks tool
Tip 36: How to work with chromatographic peaks that have been misidentified due to retention time shifts using Empower Software (Part 1).
Tip 35: How to use the Contour Plot in Empower Software to extract chromatograms and spectra from 3D PDA.
Tip 34: How to extract chromatograms and spectra from 3D PDA data in Empower Software.
Tip #33: How to use an older calibration curve to quantitate samples in Empower Software.
This tip will demonstrate how to overlay a chromatogram at a particular wavelength from two different 3D PDA channels in Empower Software.
How to calculate a chromatogram’s signal-to-noise ratio using Empower Software’s custom calculations feature. (S/N Part 4)
See how to calculate signal-to-noise ratios for pharmacopeial methods where you’re calculating noise from a blank injection. (S/N Part 3)
There are two ways Empower Chromatography Data Software can calculate signal-to-noise (S/N) ratio adhering to the pharmacopeia. This tip will address calculating noise from within the chromatogram. (S/N Part 2)
Empower Software can make signal-to-noise calculations in several different ways. Let’s begin by looking at the simple calculation of peak height divided by noise. (S/N Part 1)