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Jerome Workman Jr. serves on the Editorial Advisory Board of Spectroscopy and is currently with Unity Scientific LLC. He is also an adjunct professor at Liberty University and U.S. National University. He can be reached at jworkman04@gsb.columbia.edu.

Articles

This article provides a convenient summary of portable and handheld spectroscopy techniques, outlining the most prominent types of compact instruments for both atomic and molecular spectroscopy.

A Brief Survey of Handheld and Portable Instruments Used in Spectroscopy

Fran Adar is the Worldwide Raman Applications manager for Horiba Jobin Yvon.

Low frequency Raman scattering measurements can be used to predict
physical properties of polymers and the crystalline polymorphic form of
active pharmaceutical ingredients (APIs). These measurements are made by recording the Stokes and anti-Stokes side of the laser line with the laser centered on the detector. Spectra of polyethylene and linear alkanes were recorded down to 4 cm-1.

Very Low Frequency Measurements of Linear Alkanes

Markita Landry, the winner of the 2020 Emerging Leader in Molecular Spectroscopy Award, works at the intersection of single-molecule biophysics and nanomaterial-polymer science to develop new tools for understanding biological systems.

The 2020 Emerging Leader in Molecular Spectroscopy Award

David Tuschel is a Raman applications manager at Horiba Scientific in Edison, New Jersey, where he works with Fran Adar. David is sharing authorship of the "Molecular Spectroscopy Workbench" column with Fran.

A Raman spectrometer’s spectral resolution is determined by its spectral dispersion in conjunction with the entrance slit width. We explain the instrument design parameters involved.

Spectral Resolution and Dispersion in Raman Spectroscopy

An ongoing challenge within the forensic science community is the development of consistent report and testimony language that conveys results in a meaningful manner.

Developing More Uniform Comparison Language in Forensic Science Reportings

In celebration of Spectroscopy’s 35th Anniversary, leading experts discuss important issues and challenges in analytical spectroscopy.

Optical Molecular Spectroscopy in Combination with Artificial Intelligence for Process Analytical Technology

A Raman study of vitamin C, also known as ascorbic acid, is conducted at high pressure to determine phase changes and crystal symmetry through spectral interpretation.

The Effect of High Pressure on Ascorbic Acid Structure

Raman measurements can be used to infer the temperature of a material based on the Stokes and anti-Stokes band signal strengths, and by applying a predefined mathematical relationship. In reality, the temperature, Raman shift, and laser excitation wavelength all interact, and should be considered to better understand these measurements.

Raman Thermometry: Understanding the Mathematics to Better Design Raman Measurements

A famous and admired professor of analytical chemistry, Gary M. Hieftje, is officially retiring. He has been a prominent faculty member at Indiana University for 50 years, and a beloved mentor, colleague, and friend to many. In this special feature, we take a look at his many contributions, and his broad impact on the field.

Gary M. Hieftje’s Legacy: Fifty Years of Scientific Contributions

Ishan Barman, this year’s Emerging Leader in Molecular Spectroscopy award recipient, leads a research team combining spectroscopy, imaging, and chemometrics to seek greater understanding of the pathological changes of human cells and tissues.