Spectroscopy and Chemometrics News Weekly #41, 2016

Chemometrics

Lipstick traces: FTIR calibration. cosmetics LINK

Using FT-Near-Infrared Spectroscopy to Predict the Mechanical Properties of Thermally Modified Southern Pine Wood LINK


Near Infrared

Fast Detection of Paprika Adulteration Using FT-NIR Spectroscopy – analytical techniques LINK

NIR spectroscopy to determine health of garlic cloves. vegetables LINK

Two-Dimensional MEMS Arrays Pave Way for Mobile Spectrometers. near-infrared (NIR) spectroscopy spectrometer LINK


Raman

Turning Raman into sound for Diagnostics – the Spectral Light Orchestra now here … LINK

Discrimination of Apple Liqueurs (Nalewka) Using a Voltammetric Electronic Tongue, UV-Vis and Raman Spectroscopy LINK


Optics

Perten NIR system approved for use in combustible dust environments – DA 7300 diode array LINK


Equipment

New DISB spectrometer electronics with fast timing for instrument integrators OEM LINK

Screening system for MDMA in ecstasy tablets using a portable NIR spectrometer LINK


Food & Feed

Food scientists: We can detect much more food fraud – rawMaterials ingredients spectroscopic monitoring LINK

Food2030EU a platform for research and innovation shaping tomorrow’s sustainable food systems. FoodInnovation nutrit… LINK!

There’s a better way to detect food fraud – The fingerprint, or spectrum, can be compared to a validated fingerprint LINK



What is NIR-Spectroscopy? (simple explanation, simply explained)

In the most cases a simple Halogen lamp emits light including the near infrared (NIR) spectrum (harmless radiation) to the sample/probe and the reflected light is measured. The light loses some energy on-and-in the sample depending on its physical and chemical (molecular) structure. The missing part of the light is treated as a fingerprint of the sample that is mathematically analyzed with prefabricated NIR calibration models (built with chemometric methods), based on trained known samples. That makes it possible to simultaneous analyze multiple physical- and chemical-properties (constituent, ingredient, analyte) within a few seconds and is non-destructive to samples.