Hui Yan

A PLS model was built with optimized wavelength variables generated by a competitive adaptive reweighted sampling (CARS) algorithm, enabling the use of handheld NIR spectroscopy to rapidly detect peroxide values in oil.

In celebration of Spectroscopy’s 35th Anniversary, leading experts discuss important issues and challenges in analytical spectroscopy.

Handheld Raman, mid-infrared and near infrared spectrometers have launched vibrational spectroscopy into a new era of in-the-field and on-site analysis, as the application examples discussed here demonstrate. We assess the technological developments that have led to this progress.