November/December 2024

Spectroscopy sat down with Benjamin Manard, senior R&D staff and group leader for chemical and isotopic mass spectrometry at Oak Ridge National Laboratory, to discuss his career in the National Laboratory system, and his advice for scientists interested in following a similar path.

Stunning abstract visualization of dynamic atoms and molecules for scientific research and technology concepts. Generated with AI. | Image Credit: © pranee - stock.adobe.com.

It has occurred to me that, in the 10+ years I have been writing about molecular vibrations, I have never introduced my readers to its basic theory! I will rectify that now. Some of this is new material, and some will be review. Either way, it is important that all this material be covered in one place.

Silhouetted business meeting at sunset in a modern office setting. Generated with AI. | Image Credit: © Tonton54 - stock.adobe.com.

Seeking opportunities for career growth is important for early-career scientists to explore new skills, connect with mentors, and gain insights into the field. Professional societies and educational programs can be invaluable resources, providing mentorship, training, and networking opportunities that can accelerate career success in spectroscopy.

Green Circuit Board with Glowing Lights. Generated with AI. | Image Credit: © Starkreal - stock.adobe.com.

Because there is a different Raman signature for each of the polymorphs as well as the contaminants, Raman microscopy is an ideal tool for analyzing the structure of these materials as well as identifying possible contaminants that would also interfere with performance.

Abstract background of atoms. Chemical reactions of atoms from different concepts. Generated with AI. | Image Credit: © CatNap Studio - stock.adobe.com.

This month’s column evaluates the capability of inductively coupled plasma–mass spectrometry (ICP-MS) to reduce the impact of doubly charged rare-earth element (REE) interferences on the quantitation of the metalloids, arsenic (As), and selenium (Se) in water and biological matrices.

Raw fish fillet of tilapia on a cutting Board with lemon and spices. Dark table with copy space. | Image Credit: © Elenglush - stock.adobe.com

The purpose of this work is to achieve rapid and nondestructive determination of tilapia fillets storage time associated with its freshness. Here, we investigated the potential of hyperspectral imaging (HSI) combined with a convolutional neural network (CNN) in the visible and near-infrared region (vis-NIR or VNIR, 397−1003 nm) and the shortwave near-infrared region (SWNIR or SWIR, 935−1720 nm) for determining tilapia fillets freshness.