Raman

Authentication of Pisco: From origin to alcohol content with Raman

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Raman spectroscopy is emerging as a rapid, portable tool to test premium liquors for evidence of adulteration or substitution –problems relevant in the rising production of pisco in Peru, where the liquor must originate from specific grape varieties and regions. Here we demonstrate the ability of 1064 Raman to distinguish pure pisco from mixtures, identify the specific grape variety, and quantify both ethanol and methanol content with a high degree of accuracy – thus validating origin, quality, and safety.

Making flying safer

Optical explosive detection is set to help remove restrictions on the liquids airline passengers can carry on, finds Andy Extance

Have I selected the right laser for my Raman experiments?

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Thanks to rapid technology advancements in recent years, Raman spectroscopy has become a routine, cost-efficient, and much appreciated analytical tool with applications in material science and in-line process control for pharmaceutical, food & beverage, chemical and agricultural industries. This white paper discusses important performance parameters to consider when selecting a laser for Raman spectroscopy experiments

Scaling spectroscopy

Matthew Dale discovers how scaling spectrometers down to the chip level enables them to be mass-produced in standard MEMS foundries, making spectroscopy more affordable for various new applications

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