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- Two-dimensional_correlation_analysis abstract "Two dimensional correlation analysis is a mathematical technique that is used to study changes in measured signals. As mostly spectroscopic signals are discussed, sometime also two dimensional correlation spectroscopy is used and refers to the same technique.In 2D correlation analysis, a sample is subjected to an external perturbation while all other parameters of the system are kept at the same value. This perturbation can be a systematic and controlled change in temperature, pressure, pH, chemical composition of the system, or even time after a catalyst was added to a chemical mixture. As a result of the controlled change (the perturbation), the system will undergo variations which are measured by a chemical or physical detection method. The measured signals or spectra will shown systematic variations that are processed with 2D correlation analysis for interpretation.When one considers spectra that consist of few bands, it is quite obvious to determine which bands are subject to a changing intensity. Such a changing intensity can be caused for example by chemical reactions. However, the interpretation of the measured signal becomes more tricky when spectra are complex and bands are heavily overlapping. Two dimensional correlation analysis allows one to determine at which positions in such a measured signal there is a systematic change in a peak, either continuous rising or drop in intensity. 2D correlation analysis results in two complementary signals, which referred to as the 2D synchronous and 2D asynchronous spectrum. These signals allow amongst othersto determine the events that are occurring at the same time (in phase) and those events that are occurring at different times (out of phase)to determine the sequence of spectral changesto identify various inter- and intramolecular interactionsband assignments of reacting groupsto detect correlations between spectra of different techniques, for example near infrared spectroscopy (NIR) and Raman spectroscopy↑ ↑ ↑".
- Two-dimensional_correlation_analysis thumbnail 2DCorrelationDemoDataset.svg?width=300.
- Two-dimensional_correlation_analysis wikiPageID "26250710".
- Two-dimensional_correlation_analysis wikiPageRevisionID "596385905".
- Two-dimensional_correlation_analysis hasPhotoCollection Two-dimensional_correlation_analysis.
- Two-dimensional_correlation_analysis subject Category:Scientific_techniques.
- Two-dimensional_correlation_analysis subject Category:Spectroscopy.
- Two-dimensional_correlation_analysis type Ability105616246.
- Two-dimensional_correlation_analysis type Abstraction100002137.
- Two-dimensional_correlation_analysis type Cognition100023271.
- Two-dimensional_correlation_analysis type Know-how105616786.
- Two-dimensional_correlation_analysis type Method105660268.
- Two-dimensional_correlation_analysis type PsychologicalFeature100023100.
- Two-dimensional_correlation_analysis type ScientificTechniques.
- Two-dimensional_correlation_analysis type Technique105665146.
- Two-dimensional_correlation_analysis comment "Two dimensional correlation analysis is a mathematical technique that is used to study changes in measured signals. As mostly spectroscopic signals are discussed, sometime also two dimensional correlation spectroscopy is used and refers to the same technique.In 2D correlation analysis, a sample is subjected to an external perturbation while all other parameters of the system are kept at the same value.".
- Two-dimensional_correlation_analysis label "Two-dimensional correlation analysis".
- Two-dimensional_correlation_analysis sameAs m.0b752tz.
- Two-dimensional_correlation_analysis sameAs Q7858695.
- Two-dimensional_correlation_analysis sameAs Q7858695.
- Two-dimensional_correlation_analysis sameAs Two-dimensional_correlation_analysis.
- Two-dimensional_correlation_analysis wasDerivedFrom Two-dimensional_correlation_analysis?oldid=596385905.
- Two-dimensional_correlation_analysis depiction 2DCorrelationDemoDataset.svg.
- Two-dimensional_correlation_analysis isPrimaryTopicOf Two-dimensional_correlation_analysis.
