The Delta Ray Road Trip
Attributing the source of CO2 presents challenges for environmental agencies and research institutions. CO2 isotope ratios carry information about the emitter. However, their continuous monitoring presents a complex task. The Thermo Scientific Delta Ray CO2 Isotope Ratio Infrared Spectrometer (IRIS) enables scientists to perform isotope ratio analysis directly where the sample is taken. On a road trip through Canada, the analyzer was installed in an RV and continuously monitored the CO2 concentrations, 13C and 18O isotope ratios coast to coast.
Best of the Week: SciX Award Interviews, Tip-Enhanced Raman Scattering
June 13th 2025Top articles published this week include an interview about aromatic–metal interactions, a tutorial article about the recent advancements in tip-enhanced Raman spectroscopy (TERS), and a news article about using shortwave and near-infrared (SWIR/NIR) spectral imaging in cultural heritage applications.
Hyperspectral Imaging for Walnut Quality Assessment and Shelf-Life Classification
June 12th 2025Researchers from Hebei University and Hebei University of Engineering have developed a hyperspectral imaging method combined with data fusion and machine learning to accurately and non-destructively assess walnut quality and classify storage periods.
