• The Cost Benefits of Direct Mercury Analysis:

Do You Know the Bottom Line?

Environmental Laboratory

The Cost Benefits of Direct Mercury Analysis: Do You Know the Bottom Line?

Apr 27 2022

Imagine you are working in a large contract laboratory, and are beginning to get more and more requests for mercury analysis.

You have always used a traditional dedicated mercury analyzer utilizing cold vapor atomic absorption or atomic fluorescence spectrometry (CV-AAA or AFS), which are well suited for liquid samples with low mercury content including drinking water and surface waters. However, for the solid and other liquid samples that came into your lab, they had to go through an appropriate dissolution step prior to analysis, which in many cases involved microwave digestion. And because of the high volatility of mercury, these dissolution techniques can often lead to loss of analyte and poor recoveries if the  optimum digestion technology isn’t used, possibly resulting in sample reruns, which can impact lab efficiency, operator time, and the overall cost of analysis.

So, with this information fresh in your mind, it has you thinking that a novel approach known as Direct Mercury Analysis (DMA) that can determine mercury directly in solid and liquid samples using the principle of thermal decomposition coupled with amalgamation and atomic absorption might be the way to go.

To stay with traditional dedicated mercury techniques such as CV-AAS/AFS or perhaps move some of the samples over to the ICP mass spectrometer (ICP-MS), which is predominantly used for drinking water and wastewater analysis, or to invest in the direct mercury technique. So, let’s take a closer look at the comparison in running costs between the Milestone DMA-80 evo and CV-AAS/AFS, and also how they stack up against ICP-MS, to see if the investment can be justified.

Download the ROI worksheet

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The Milestone DMA-80 evo Direct Mercury Analyzer offers more than double the productivity of traditional techniques at a fraction of the cost and is suitable for a wide range of samples. To fully understand the differences, it’s important to break the dedicated mercury analysis methods into their different components: pre-digestion handling, sample digestion, post-digestion handling, and sample analysis and then compare the associated costs for each step with the DMA-80 evo method.

Download the technology report


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International Environmental Technology 32.3 - May/June 2022

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