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Improving EPR Spectrometers for Field Deployment

Can electron paramagnetic resonance (EPR) spectrometers be used in beer production? The answer may surprise you.

Gemstone Identification Through Molecular Spectroscopy and Spectral Imaging: A Non-Invasive Method for Authenticating Turquoise

This paper aims to identify gemstones using various spectroscopic methods, including Raman spectroscopy and spectrophotometry, as well as spectral imaging techniques like hyperspectral and multi-band imaging.

Evaluation and Development Trends of Optical Detection Technology for Seed Vigor

In this article, the basic principles, advantages, and limitations of different optical techniques for obtaining seed vigor estimates are introduced and reviewed, and the key technology of non-destructive optical detection of single seeds will be discussed.

Recognition of Process Degree for Gardeniae Fructus Praeparatus Based on Hyperspectral Data and Neural Network

In this study, a hyperspectral (400–1000 nm) system was utilized to acquire hyperspectral images of gardeniae fructus (GF) and construct a data set containing 3146 spectral data.

Using Handheld Raman Spectroscopy for In-Field Plant Monitoring

Spectroscopy sat down with Renee Romano, a graduate student at The Ohio State University, to discuss the broader implications of her findings, including how they demonstrate the potential of Raman spectroscopy for in situ, real-time monitoring of plant–microbe interactions without destructive sampling.

Quantifying the Vibrational Stark Effect

In this exclusive interview, Nishadi Nadeeshani Moragoda Liyanage, a graduate student at The Ohio State University, outlines how the results of her study help advance our understanding of plasmon-induced electron transfer and its applications in nanoscale optoelectronic and catalytic systems.

Evaluation and Development Trends of Optical Detection Technology for Seed Vigor

In this article, the basic principles, advantages, and limitations of different optical techniques for obtaining seed vigor estimates are introduced and reviewed, and the key technology of non-destructive optical detection of single seeds will be discussed.

An Inside Look at Digital Microfluidic SERS Detection

Did you miss Sian Sloan-Dennison’s talk on digital microfluidics and surface-enhanced Raman spectroscopy (SERS) at Spring SciX? If yes, she recaps her talk in this video clip.

Experimental Investigation of the Self-Absorption Effect in Laser-Induced Breakdown Spectroscopy Based on Fiber Laser Ablation

Unlocking High-Dimensional Insights in LA-ICP-TOF-MS Imaging

A recent study provides a detailed introduction to uniform manifold approximation and projection (UMAP) for analyzing LA-ICP-TOF-MS data. By converting high-dimensional MSI data into two-dimensional spaces, UMAP facilitates automated visualization to identify spectral clusters. Spectroscopy spoke to the paper’s lead author, Katharina Kronenberg of the University of Graz, about her group’s work.

Accurate and Precise Quantification of Arsenic and Selenium in Water and Biological Samples Through the Removal of Doubly Charged Rare Earth Element Interferences by ICP-MS

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.

In-situ Detection of Rice Using Laser Induced Breakdown Spectroscopy and Machine Learning

This research investigates the application of laser-induced breakdown spectroscopy (LIBS) and machine learning (ML) for detecting elemental composition of food, using rice as an example.

Magnetic Particles Show Promise Against Antimicrobial-Resistant Biofilms

Research presented at Pittcon 2025 demonstrated new tactics using chemometrics and spectroscopy that could help combat antibiotic resistance.

Analyzing Bone Chemistry with LIBS

Jorge Caceres, a professor at Complutense University in Madrid, Spain, sat down with Spectroscopy to discuss how LIBS works as a fast, simple, cost-effective, and analytically conclusive technique for confidently re-associating human bone remains.

A Comparison of Two Microwave Digestion Systems for Analyzing Biological Tissues for As, Cd, Pb, and Hg, by ICP–MS/MS

The primary goal of this study was to evaluate two microwave digestion systems for the acid decomposition of biological tissues: (1) a single reaction chamber (SRC) system and (2) a rotor-based, closed vessel microwave (RBCVM) system.

Improving EPR Spectrometers for Field Deployment

Can electron paramagnetic resonance (EPR) spectrometers be used in beer production? The answer may surprise you.

Analysis of Deposition Patterns and Influencing Factors of Lithium and Transition Metals Deposited on Lithium Ion Battery Graphitic Anodes by LA-ICP-MS

A comprehensive understanding of aging phenomena and the resulting performance loss occurring in lithium-ion batteries (LIBs) is essential for ongoing improvement of the technology. The formation of a uniform solid electrolyte interphase (SEI) is of crucial importance for the performance, lifetime, and safety of LIBs. Transition metal dissolution (TMD), caused by degradation of the cathode, and subsequent TM deposition on the anode surface can deteriorate the protective properties of the SEI, possibly leading to reconstruction of the SEI and loss of active lithium. We explore this topic here.

Non-Invasive Methods for Studying Papyrus from Ancient Egypt

Arzak Mohamed from Macquarie University in Australia broke down how she uses spectroscopy to analyze ancient manuscripts.

Spectroscopic Investigation of Charge Transfer Interaction Between Five Antibiotics Depending on Density Functional Theory

In this study, the ground state structure and CT transition of the complex formed by the reaction of hydrogen peroxide (H2O2) with the five antibiotics (TMP, NOR, OFL, CIP, and SMR) were theoretically investigated by density functional theory (DFT).

Spectroscopic Investigation of Charge Transfer Interaction Between Five Antibiotics Depending on Density Functional Theory

In this study, the ground state structure and CT transition of the complex formed by the reaction of hydrogen peroxide (H2O2) with the five antibiotics (TMP, NOR, OFL, CIP, and SMR) were theoretically investigated by density functional theory (DFT).

Physicochemical Analysis and Detection of Rice Syrup Adulteration in Kelulut Honey Using Portable Near-Infrared Spectroscopy

This study aimed to assess and detect adulteration of Kelulut honey with different percentages of rice syrup using near-infrared (NIR) spectroscopy.

Ep. 40: Curiosity, Collaboration, and Open-Mindedness are the Keys

In this episode, podcast co-hosts Dr. Dwight Stoll and Dr. James Grinias talk with Professor Luis Colon about the influence his father had on his pursuit of science and his interest in materials development for chromatography.

Improving Reconstructions of Ancient Artifact Histories

How can micro-particle induced X-ray emission (µ-PIXE) and micro-ion beam induced luminescence (µ-IBIL) spectroscopy improve conservation practices?

Authenticity Identification of Panax notoginseng by Terahertz Spectroscopy Combined with LS-SVM

In this article, it is explored whether THz-TDS combined with LS-SVM can be used to effectively identify the authenticity of Panax notoginseng, a traditional Chinese medicine.

The Advantages of Raman Spectroscopy Over Biodosimetric Methods

As part of our coverage of the SciX Conference, Spectroscopy sat down with Witte, a graduate student at The Ohio State University, to talk about how machine learning (ML) algorithms can differentiate between spectral features associated with radiation dose and those reflecting temporal changes post-exposure, as well as the benefits of using Raman spectroscopy to detect and quantify radiation-induced molecular changes.

From Bench to Factory: The Role of Chemical Purity and Process Control in Lithium-Ion Battery Innovation

Lithium-ion batteries have revolutionized energy storage across consumer electronics, electric vehicles, and grid-scale systems, but further advancement requires overcoming challenges in safety, performance, affordability, and sustainability as production scales from laboratory to gigafactory levels. This article highlights the essential role of analytical chemistry techniques and rigorous process control in mitigating thermal runaway, reducing variability, managing impurities, optimizing costs, and improving recyclability to enable safer, higher-performing, and more sustainable next-generation battery technologies.

In-situ Detection of Rice Using Laser Induced Breakdown Spectroscopy and Machine Learning

This research investigates the application of laser-induced breakdown spectroscopy (LIBS) and machine learning (ML) for detecting elemental composition of food, using rice as an example.

Wavelet Denoising Algorithm Based on Improved Threshold Function for Methane Detection Using TDLAS

Discover how an improved wavelet denoising technique enhances methane detection accuracy in TDLAS systems, optimizing signal quality and reducing noise.

Accurate and Precise Quantification of Arsenic and Selenium in Water and Biological Samples Through the Removal of Doubly Charged Rare Earth Element Interferences by ICP-MS

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.

Determination of Electrolytes in Sports Drinks by Microwave Plasma Atomic Emission Spectroscopy (MP-AES)

Discover a cost-effective method for analyzing electrolyte elements in sports drinks using microwave plasma atomic emission spectroscopy, enhancing quality control and accuracy.