Spectroscopy

Spectroscopy is a trade magazine that has been in circulation since 1985, published by Advanstar Publishers. Its main aim is to encourage and assist in the use of spectroscopic tools across various fields, including applied research, environmental testing, quality assurance, and life sciences.

National, Trade/B2B

English

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#375841

Canada

#50900

Science and Education/Chemistry

#29

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Articles

New Optical Formulae for Thin Films Boost Accuracy for Real-World Applications

6 days ago | spectroscopyonline.com | Jerome Workman

New formulae improve thin-film analysis by accounting for wedge geometry and absorbing substrates. Enhanced models show higher accuracy over a broad spectral range, particularly in UV-vis-NIR. A publicly available toolkit in Python and MATLAB supports the practical application of the findings. The study emphasizes a trade-off between computational efficiency and optical model accuracy.
Bruce R. Kowalski: The Maverick Mind Behind Chemometrics

6 days ago | spectroscopyonline.com | Jerome Workman

Bruce R. Kowalski (1942–2012) is widely regarded as a founding figure in the field of chemometrics. His pioneering work in multivariate statistics, pattern recognition, and data processing enabled chemists to interpret complex chemical data more effectively and reproducibly.
Best of the Week: Hawaiian Geology, Meteorite Clues, Cat Food

1 week ago | spectroscopyonline.com | Will Wetzel

This week, Spectroscopy published articles highlighting recent studies in several application areas in analytical spectroscopy, including astronomy, geology and mineralogy, and food analysis. Key techniques highlighted in these articles include longwave infrared (LWIR) spectroscopy, shortwave IR spectroscopy (SWIR), Raman spectroscopy, and inductively coupled plasma–optical emission spectroscopy (ICP-OES).
Defining LWIR and SWIR: An Interview with Pooja Sheevam

1 week ago | spectroscopyonline.com | Will Wetzel

Prior to joining the New Mexico Bureau of Geology and Mineral Resources as a research associate, Pooja Sheevam was a PhD Candidate at the University of Nevada, Reno, where she worked with infrared (IR) spectroscopy and its applications to study the mineralogy of the Hawaiian drill core (1,2).
Cracking the Martian Code: Using Raman Spectroscopy and Chemometrics to Reveal Hidden Organic Clues in Meteorites

1 week ago | spectroscopyonline.com | Jerome Workman

Raman imaging with PCA and MCR-ALS enabled non-destructive identification of organic compounds in a Martian meteorite. Spectroscopic analysis preserved meteorite integrity by avoiding surface alteration or polishing. A Renishaw inVia spectrometer with controlled laser power and daily calibration ensured precise, artifact-free Raman measurements. This spectroscopic approach supports biosignature detection in Martian samples and future planetary return missions.
Analyzing Hawaii’s PTA-2 Drill Core With LWIR and SWIR Spectroscopy

1 week ago | spectroscopyonline.com | Will Wetzel

Hawaii’s geology and climate diversity make it a valuable site for subsurface mineralogical studies. LWIR, SWIR, SEM-EDS, and XRF techniques revealed mineral phases and alteration effects in the PTA-2 drill core. Researcher Pooja Sheevam used spectroscopy to explore Hawaii’s mineralogy and fluid-rock interactions during her PhD work. The state of Hawaii, because of its volcanic activity and diverse topography, has interested geologists for decades.
Analyzing Hawaii’s PTA-2 Drill Core: An Interview with Pooja Sheevam, Part I

1 week ago | spectroscopyonline.com | Will Wetzel

Hawaii’s geology and climate diversity make it a valuable site for subsurface mineralogical studies. LWIR, SWIR, SEM-EDS, and XRF techniques revealed mineral phases and alteration effects in the PTA-2 drill core. Researcher Pooja Sheevam used spectroscopy to explore Hawaii’s mineralogy and fluid-rock interactions during her PhD work.
Microplastics Found in Deepest Reaches of Central Indian Ocean

1 week ago | spectroscopyonline.com | Will Wetzel

Recently, a team of researchers studied and quantified the presence of microplastics (MPs) in the deep-sea sediments of the Central Indian Ocean Basin (CIOB). The research team, which was led by Dineshram Ramadoss from the CSIR-National Institute of Oceanography (NIO) in Goa, India, demonstrated that at depths of 5000 meters, the CIOB contains a significant presence of MPs in one of Earth’s most remote marine environments (1).
Raman Reveals Rare Ribbeck Meteorite Clues About Ancient Solar System

1 week ago | spectroscopyonline.com | Jerome Workman

Raman spectroscopy and XRD confirmed Ribbeck's mineralogy, including pure enstatite, albite, and forsterite phases. Spectroscopic analysis highlights Ribbeck as a pristine aubrite with minimal Earth-based alteration. Rare metallic and sulfide inclusions, revealed via EDS, formed under highly reduced, oxygen-depleted conditions. Spectroscopy supports Ribbeck’s magmatic and metamorphic history, refining insights into aubrite evolution and Solar System formation.
New Spectroscopy Method Offers Breakthrough in Yak Milk Powder Quality Testing

1 week ago | spectroscopyonline.com | Will Wetzel

Researchers developed a miniaturized NIR spectroscopy method with machine learning to rapidly and accurately assess yak milk powder quality without chemical reagents. The random forest model showed the highest accuracy in predicting protein, fat, moisture, and acidity levels across diverse yak milk powder samples. This fast, sustainable approach enables real-time quality monitoring, supporting automation and reducing environmental impact in dairy production.