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This interview with Young Jong Lee highlights the work he and his team have done to reinvent solvent absorption compensation (SAC), and the potential it has across multiple forms of spectroscopy.

High-Sensitivity Mid-IR Absorption Spectroscopy for Proteins in Aqueous Solution

Ruonan Zeng is with the College of Materials and Textiles at Zhejiang SciTech University, in Zhejiang, China. 

This new terahertz method provides a theoretical reference for studying the relationship between biomolecules and water.

Terahertz Spectral Investigation of L-Cysteine Hydrochloride and its Monohydrate

Terahertz time-domain spectroscopy was used to identify and analyze the low-frequency vibrational modes of three free anthraquinones, revealing the vibrational contributions of different atoms and groups.

Identification and Analysis of Medicinal Components in Rhubarb Roots Using Terahertz Spectroscopy

A research team from Botswana International University of Science and Technology investigated 4-octyloxybenzoic acid, 4-decyloxybenzoic acid, and 4-hexylbenzoic acid liquid crystals, which highlighted the robustness of FT-IR and its potential in identifying materials with similar attributes.

Terahertz Spectroscopy Used to Characterize Liquid Crystals

 is a Principal Scientist in General Chapters Department of United States Pharmacopeia (USP). Direct correspondence to: exb@usp.org

 is a Senior Director of General Chapters Department of Science Division of United States Pharmacopeia (USP). Direct correspondence to: exb@usp.org

The United States Pharmacopeia–National Formulary (USP–NF) has contributed to ensuring the quality of dietary supplements, foods, and medicines for more than 200 years. This overview explains the use of vibrational spectroscopy techniques in meeting USP–NF requirements and how the information is organized.

Spectroscopy and Spectroscopic Analytical Techniques in the United States Pharmacopeia–National Formulary (USP–NF)

On the occasion of Spectroscopy’s 35th birthday, I thought it would be an interesting opportunity to consider the amazing explosion in light sources for spectroscopy over the last few decades. 

Light Matters . . . 35 Years of New Sources for Spectroscopy

Researchers at the National Institute of Standards and Technology (NIST) have created a technique that uses terahertz waves to measure structural properties in integrated circuits.

Far-IR/Terahertz Spectroscopy