April/May 2025

This product review covers products introduced from May 2024 to April 2025.

Carbonyl containing functional groups are strong infrared absorbers and a number of them are easy to identify by infrared spectroscopy. Here, we will review the spectra of ketone and carboxylic acids.

United States Pharmacopoeia (USP) general chapter <1058> on Analytical Instrument Qualification (AIQ) now has a new title from a draft update for public comment: Analytical Instrument and System Qualification (AISQ). A new three-phase integrated lifecycle phase approach to qualification and validation is described. But will laboratories and suppliers implement it?

Click here to access the Spectroscopy April/May 2025 Europe PDF in an interactive format.

Researchers in China have developed a rapid, non-destructive Raman spectroscopy method that accurately detects active components in complex drug formulations by combining advanced algorithms to eliminate noise and fluorescence interference.

In this "Icons of Spectroscopy" column, executive editor Jerome Workman Jr. delves into Part I of the life and work of C. V. Raman, a physicist who has made major contributions to the science of vibrational spectroscopy and created an understanding for one of the most important quantum-based spectroscopy tools in generations.

In this article, tunable diode laser absorption spectroscopy (TDLAS) is used to measure ammonia leakage, where a new denoising method combining empirical mode decomposition with the Savitzky-Golay smoothing algorithm (EMD-SG) is proposed to improve the signal-to-noise ratio (SNR) of absorbance signals.