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Karen Steward PhD

Science Writer

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Writes for:

Analysis & Separations Applied Sciences Immunology & Microbiology

Latest Content From Karen Steward PhD

Comparing Chromatography Techniques
Infographic

Chromatography is an important tool in analytical chemistry, learn about how the different techniques in the field work and their applications.

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Identifying Novel Opioid Agonists From Metabolites
Industry Insight

Novel drugs of abuse have been a growing problem for law enforcement and the medical profession. Consequently, they have also become a challenge for analysts in the face of new or variant chemicals. We spoke to Research Scientist Alex Krotulski about the work he is doing to identify new and emerging illicit substances.

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When Science Leaves the Lab, Microscopy Goes Portable
Industry Insight

Microscopy is a key tool in many areas of research, but what happens when what you want to study is in a remote location, doesn’t transport well or you need instant answers? Well, then the analysis has to go to the sample. We spoke to Andrew Monk, cofounder of ioLight, about ioLight’s conception and what makes it so special.

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The Value of Nothing – Challenges of Developing Diagnostics for Endemic Diseases
Article

How can you treat something if you don’t know what the problem is? This is the first challenge for medics and vets, one for which diagnostic testing holds the key. But when the disease you want to test for is endemic, it can raise some additional challenges - the all important negative controls.

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Rising to the Challenge of Protecting Our Water Resources
Article

In the western world, when we turn on our taps, we take it for granted that the drinking water that comes out is safe. But a lot of work goes on behind the scenes to ensure this is the case. We spoke to Fiona Regan, Professor of Chemistry at Dublin City University and Director of the DCU Water Institute, about the challenges facing our water resources.

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Drinking Water Analysis
Infographic

Water treatment plants and analytical laboratories work hard to ensure that by the time drinking water reaches your tap it is safe to drink. Find out why we test drinking water, what we look for and how we do it.

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Chewing on the Fat of Food Analysis and Beyond
Industry Insight

To ensure safety and consistency of products within the food industry, continual analysis through the production process is essential. We spoke to Ian Olmsted, from CEM Corporation, about ORACLE, an innovative solution that enables analysts to measure fat in food and much more without the fuss of traditional techniques.

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Seeing Is Believing – How Benchtop SEMs Are Changing the Imaging Landscape
Industry Insight

Imaging techniques, such as scanning electron microscopy (SEM), have been instrumental in giving insights into the world beyond the naked eye. Traditional SEM instruments have provided us with unprecedented details, but can be complex to use, and require a large dedicated space. The dawn and advancement of compact and user-friendly benchtop SEMs are changing this picture. We spoke to Donna Guarrera, Assistant Division Director for SM at Jeol, about the Neoscope benchtop SEM.

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ASMS Introduces… An Overview of What’s New for 2019
Industry Insight

The 67th American Society for Mass Spectrometry (ASMS) Conference on Mass Spectrometry and Allied Topics is currently in full swing in Atlanta, Georgia. Bringing together over 6,500 scientists from across the globe, companies working in the mass spectrometry field also take this opportunity to share their latest developments and innovations. Here we will take a look at some of the release highlights for 2019.

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Working To Keep Drinking Water Safe
Industry Insight

Official limits are in place regarding the levels of a multitude of substances that are deemed to be safe and acceptable in drinking water, but to fulfill these requirements analysts need the tools to enable them to do this. We spoke to Yan Liu, and Katariina Majamaa from Thermo Fisher Scientific about their new columns designed to enable rapid separations of contaminants prior to analysis using ion chromatography-mass spectrometry (IC-MS).

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