Spectroscopy-08-01-2020

A MATLAB Application for Calculation of Cell Pathlength in Absorption Transmission Infrared Spectroscopy

August 01, 2020

Tutorial

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Reliable quantitative FT-IR measurements require that the pathlength be known to within 1%. Pathlength estimations based on nominal spacer thickness are not reliable and require that the actual pathlength be measured for accurate data. We demonstrate how.

A Survey of Chemometric Methods Used in Spectroscopy

August 01, 2020

Chemometrics in Spectroscopy

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We provide a scorecard of chemometric techniques used in spectroscopy. The tables and lists of reference sources given here provide an indispensable resource for anyone seeking guidance on understanding chemometric methods or choosing the most suitable approach for a given analysis problem.

The Fundamentals of Total Reflection X-ray Fluorescence

August 01, 2020

Tutorial

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Total reflection X-ray fluorescence (TXRF) spectroscopy offers impressive performance, providing ultratrace elemental analysis with detection limits reaching the femtogram levels. Here, we provide a tutorial on the technique and the key steps that users should follow.