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What can spectroscopic techniques, such as portable X-ray fluorescence spectrometry (PXRF), reveal about the sarsen megaliths of Stonehenge and where they originated? David Nash, a professor of physical geography at the University of Brighton in Brighton, United Kingdom, is exploring this question. We recently spoke with Professor Nash about his team’s discovery and what it means for the future of archaeology.

Using Portable X-ray Fluorescence Spectrometry (PXRF) to Explore the Origins of the Sarsen Megaliths at Stonehenge

Uwe Karst of the University of Münster in Germany explains the use of laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) imaging to provide spatially resolved quantification of trace elements in biological samples.

Investigating Lanthanide Deposition Patterns in Tissue Using Laser Ablation–Inductively Coupled Plasma–Mass Spectrometry (LA-ICP-MS) Imaging

Investigating Lanthanide Deposition Patterns in Tissue Using LA-ICP-MS Imaging

Seaweed has become a popular ingredient in Western diets. Concerns for heavy metals and inorganic arsenic have been raised as potential risks to consumers. Methods for analysis are described, including microwave digestion, HPLC,
and ICP-MS for quantitation and speciation.

Studying Inorganic Arsenic, Heavy Metals, and Iodine in Dried Seaweed

The determination of metals in hygienic face masks is important for global heath
at this time. Following the guidelines of ISO 18562-4, an ICP-OES method is described including sample preparation, analysis, and validation of the methodology.

The Determination of Metals in Disposable, Non-Medical Face Masks by ICP-OES

This study describes how interference-free, low-level analysis of toxic elements as well as major elements in particulate matter (PM), with an aerodynamic diameter of 2.5 μm or smaller, can be accomplished. Comparison study examples are given for two locations.

Analyzing the Elemental Composition of Fine Particulate Matter (PM2.5) Emitted as Air Pollution Using Inductively Coupled Plasma–Mass Spectrometry (ICP-MS)

Metallomics approaches based on mass spectrometry have become increasingly important in the support of developing metal-based anticancer drugs. This area is a key focus for Gunda Koellensperger and her colleagues at the University of Vienna (Austria) and they recently published an article discussing this state-of-the-art instrumentation, as well as highlighting recent analytical advances, focusing especially on the latest developments in inductively coupled plasma-–mass spectrometry (ICP-MS). 

Advancing Metal-Based Anticancer Drugs with ICP-MS and Imaging MS Techniques

A team of researchers at the University of Brighton in England used a combination of geochemical and statistical approaches to determine where Stonehenge’s sarsen (silcrete) megalith stones came from.

XRF and ICP Analyses Reveal Secrets of Stonehenge Stones

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.

John W. Olesik of The Ohio State University discusses his collaborative ICP–OES and ICP–MS research and shares insights gleaned over a career of teaching and research.

Fundamental Research Collaboration and Applications of ICP-OES and ICP-MS Toward Improved Understanding of Elemental Chemical Analysis: Part II

EPA Method 200.8 and the Lead and Copper Rule Revisions don’t allow use of modern ICP-MS technology with a collision cell. Instead, correction equations can be used to compensate for polyatomic interferences.