The Milestone DMA-80 evo is a direct mercury analyzer for solid, liquid, and gas samples. It requires no sample preparation and delivers results in just 5 minutes.
Save time. Go direct for mercury analysis
For nearly 20 years, the Milestone DMA-80 has led the way in direct total mercury analysis. The difficulties in determining mercury are well known to analysts, who frequently encounter a variety of problems related to laborious sample preparation procedures or mercury analysis steps that result in memory effect even after lengthy cleaning cycles using the newest ICP-MS or cold vapor systems.
Following EPA method 7473, the DMA-80 evo mercury determination system can analyze any matrix (solid, liquid, or gas) in as little as six minutes without chemical additions or pre-treatment. With thousands of units in place, Milestone sets the standard for direct mercury determination across various industries, including mining, petrochemical, environmental, food and energy, cement, cosmetics, and agriculture.
Features include:
- Enhanced external design for an event with better performance at the ppt level
- Simple technology requiring only one permanent calibration for all matrices
- No memory effect thanks to the ground-breaking autoblank feature
- Milestone Connect for 30+ years of experience at one’s fingertips
- Complete adherence to ASTM methods D-6722-01, D-7623-10, and US EPA method 7473.
- Dependable components and an easy-to-maintain system to optimize the ROI.
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Go direct for any sample and every sample
Many different industries and applications have been seamlessly integrated by the DMA-80 evo . In environmental applications like soil, wastewater, sediment, and waste testing, it is utilized to determine the amount of mercury present. It has also been incorporated into the food industry, where its main use is in fish testing.
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Low running costs with superior ROI
The DMA-80 evosystem is inexpensive to operate and simple to maintain. Reliability is synonymous with its sophisticated components, which consistently guarantee the same quality. The DMA-80 evo operates flawlessly with oxygen or compressed air as a carrier, giving the lab extra savings without sacrificing functionality.
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Superior performance even at the ppt level
The DMA-80 evodouble beam significantly enhances the signal-to-noise ratio, greatly lowering the quantification limit and enabling precise mercury determination at the ppt level. This improved signal stability enhances the reproducibility and reliability of analysis, even for low concentrations.
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Long-lasting calibration for all matrices
A single calibration performed using either liquid or solid reference materials works with a broad range of samples with concentrations ranging from ppm to ppt. Due to the stability of the system and the extended lifespan of the catalyst tube and gold amalgamator, the calibration of the DMA-80 evooffers long-term reliability.
With the help of these features, people can eliminate daily calibrations that traditional instrumentation frequently requires.
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| Certified material |
Certified (micro gram/Kg) |
DMA-80 (micro gram/Kg) |
| NIST 1568a Rice Flour |
5.8 ± 0.5 |
5.9 ± 0.2 |
| BCR-150 Skim Milk Powder |
7.7 - 11.1 |
9.2 ± 0.2 |
| NIST 1630a Coal |
93.8 ± 3.7 |
93.4 ± 2.4 |
| NIST 1633b Fly Ash |
141 ± 19 |
149 ± 2 |
| BCR-61 Acquatic Plant |
210 ± 250 |
221 ± 3 |
| GSD-10 Stream Sediment |
280 ± 40 |
270 ± 15 |
| BCR-422 Cod Muscle |
543 - 575 |
558 ± 8 |
Results of various certified reference materials using the same calibration
Forget about memory effect
Milestone’s DMA-80 evo fully resolves this challenge with a revolutionary feature: the Autoblank. Combined with the system’s high-performance components, it eliminates overestimation and ensures low blanks, enhancing user confidence in the data while maintaining high productivity.
1. Seabass
Hg: 1239.66 μg/Kg
Direct Hg analysis in a seabass sample. Image Credit: MilestoneTM Srl
2. Auto-Blank
Hg: -
As the Hg concentration is above the set value in the Autoblank, the system automatically starts a blank cycle. Image Credit: MilestoneTM Srl
3. Lobster Hepatopancreas (TORT-3)
Hg: 287.65 µg/Kg | Certified value: 292 ± 22 μg/Kg
Thanks to the Autoblank feature the next sample is analyzed with great precision and accuracy, avoiding overestimation. Image Credit: MilestoneTM Srl
Milestone Connect
Milestone Connect puts over 30+ years of expertise at the user’s fingertips. Joining the Milestone community through this web-based application gives exclusive access to a vast library of knowledge, including part lists, technical notes, user manuals, video tutorials, application notes that are updated frequently, and all pertinent scientific articles.
Milestone Connect also enables remote system monitoring by extending instrument control to the user's PC, tablet, or smartphone. Milestone Connect gives round-the-clock, immediate access to support.
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Improved design from the inside out
The first step in the analysis process is to weigh the sample into a boat and then run it through thermal decomposition with oxygen or air flowing through it. After that, all of the mercury and leftover combustion products enter the catalyst section.
Here, the mercury species are reduced, trapped on a gold amalgamator, and then released into several measuring cells that are placed along the optical path of the spectrophotometer after interferences have been eliminated.
Even at the ppt level, accurate and precise mercury determination is made possible by the DMA-80 evo double beam's significant reduction of the signal-to-noise ratio, significantly improving the quantification limit. This improved signal stability enhances analysis reliability and reproducibility even at low concentrations.
DMA-80 evo schematics. Image Credit: MilestoneTM Srl