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Chemometrics, the application of mathematical or statistical algorithms to make inferences on the state of a chemical system from physical measurements of it, is a powerful tool that can be used to re-read what previously was observed as ‘noise’ in analytical measurements. Instruments such as spectrophotometers can take thousands of measurements over a predefined interval, but the spectra are only of great use when reference libraries exist, or if large trends occur that allow for visual matching, such as with a particular functional group. Application of statistical techniques...