Analytics system and user interface therefor
An analysis system includes a separation system that provides compounds to a sample cell of a spectrometric system. The system analyzes spectral information from the spectrometric system by optimizing retention windows for the compounds and identifies quantities of the compounds by comparing spectral information within and outside the respective retention windows. Information is displayed in windows of a user interface.
1. A user interface for displaying information from an analytics system having a separation system and a spectrometric system, the user interface comprising:
a chromatogram plot that is rendered on a display device displaying chromatograph signals as a function of time showing compounds eluting from the separation system;
an absorbance spectrum plot that is rendered on the display device with the chromatogram plot that provides absorbance spectra corresponding to the chromatograph signals for the compounds; and
a playback function that displays chromatograph signals in the chromatogram plot over the course of a run of the separation system and the corresponding detected absorbance spectra in the absorbance spectrum plot.
2. The user interface of claim 1 , wherein the playback occurs at a higher speed than the run of the separation system from which the absorbance spectra were obtained.
3. The user interface of claim 1 , wherein the playback occurs at at least 5 times faster than the run of the separation system from which the absorbance spectra were obtained.
4. The user interface of claim 1 , wherein the chromatogram plot is a pseudo chromatogram plot.
5. The user interface of claim 1 , wherein the separation system is a gas chromatography system and the spectrometric system is a Fourier transform infrared spectrometry system.
6. The user interface of claim 1 , further comprising an absorbance spectral data file list showing the files containing the absorbance spectra.
7. The user interface of claim 1 , further comprising upper and lower spectral range markers rendered on the display device and displayed on the absorbance spectrum plot indicating the portions of the absorbance spectra that were used to calculate the chromatogram signal of the chromatogram plot.
8. A sample analysis system comprising:
a gas chromatography system for separating a sample into its compounds;
a Fourier transform infrared spectrometry system for collecting absorbance spectra of the compounds;
a computer system for receiving the absorbance spectra and generating a user interface on a display device, the user interface comprising a chromatogram plot that is rendered on display device and displaying chromatograph signals as a function of time showing compounds eluting from the gas chromatography system, an absorbance spectrum plot that is rendered on display device and that provides the absorbance spectra generated by the Fourier transform infrared spectrometry system; and a playback function that displays chromatograph signals in the chromatogram plot over the course of a run of the gas chromatography system and the corresponding detected absorbance spectra in the absorbance spectrum plot.
9. A user interface for displaying information from an analytics system having a separation system and a spectrometric system, the user interface comprising:
a chromatogram plot that is rendered on a display device displaying chromatograph signals as a function of time showing compounds eluting from the separation system;
an absorbance spectrum plot that is rendered on the display device with the chromatogram plot that provides absorbance spectra corresponding to the chromatograph signals for the compounds; and
a list of compounds that is rendered on the display device for which calibration spectra are available, wherein selection of a compound from the list of compounds causes the analytics system to access absorbance spectral data files acquired during a run of the separation system at a time when the selected compound would have eluted from the separation system and determine an amount of the selected compound.
10. The user interface of claim 9 , wherein the amount is provided in nanograms.
11. The user interface of claim 9 , further comprising providing an amount of interfering compounds.
12. The user interface of claim 9 , further comprising providing an amount of error.
13. The user interface of claim 9 , wherein the list of compounds further includes retention times and retention indices.
14. The user interface of claim 9 , further comprising culling the list so that only those compounds that would have eluted at approximately the same time as the selected compounds are shown.
15. The user interface of claim 9 , further comprising displaying a retention index mass plot.
16. A user interface for displaying information from an analytics system having a separation system and a spectrometric system, the user interface comprising a pseudo-chromatogram plot, wherein selecting a compound from a file list causes a corresponding chromatogram to be highlighted.
17. The user interface of claim 16 , wherein the chromatograph is highlighted with a visually-distinguishable boundary.
18. A user interface for displaying information from an analytics system having a separation system and a spectrometric system, the user interface comprising:
a calibration spectral plot displaying a calibration spectrum that is rendered on a display device; and
a peak tracking function that generates one or more tracking lines that are displayed in the calibration spectral plot on the display device, wherein the analytics system will find peaks indicated by the lines when analyzing the spectra from the spectrometric system to provide an indicator of whether or not the gas is present in a sample.