Multifunctional Mercury Analyzer RA-915M
RA-915M is a supersensitive and highly selective portable analyzer that allows real-time mercury measurement in ambient and indoor air. Being combined with dedicated attachments, the analyzer is used for mercury determination in solid and liquid samples, biological materials, and various gases. RA-915M-based sets can be used in stationary and field laboratories.
RA-915M is used for background air monitoring, mercury surveys including continuous measurements from vehicles, indoor and outdoor pollution detection and mapping, demercurization control, occupational health and safety, geochemical exploration, etc.
Direct measurements comply with EN 15852 standard for the determination of total gaseous mercury in the air.
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Matrix |
Limit of detection (LOD) |
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Gaseous samples. Direct analysis |
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Ambient air |
0.5 ng/m3 |
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Natural gas |
1 ng/m3 |
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Solid and liquid samples. Thermal decomposition technique |
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Soils, rocks, sediments |
0.5 ppb (µg/kg) |
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Water and solutions |
1 ppb (µg/L) |
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Foodstuff |
0.5 ppb (µg/kg) |
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Biological samples (tissues, blood, hair, etc.) |
0.5 ppb (µg/kg) |
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Crude oil, gas condensate |
1 ppb (µg/kg) |
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Naphtha |
direct |
1 ppb (µg/kg) |
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preconcentration |
0.05 ppb (µg/kg) |
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Coal |
1 ppb (µg/kg) |
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Sorbent traps for stack gases |
0.5 ng* |
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Solid and liquid samples. Cold vapor (CV) technique |
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Water and solutions |
0.1 ppt (ng/L) |
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Urine |
0.1 ppb (µg/L) |
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Biological samples |
0.1 ppb (µg/kg) |
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Foodstuff |
0.1 ppb (µg/kg) |
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* range 0.5 - 50,000 ng
Differential Zeeman atomic absorption spectrometry with high frequency modulation of light polarization (ZAAS-HFM).
- Direct continuous measurement; no gold traps, no compressed gases
- Ultra-low detection limit and highest selectivity
- Real-time operation mode for air and gases with 1 s response time
- Attachments for direct mercury determination in liquids, solids, and hydrocarbon gases
- Wide dynamic measuring range (six orders of magnitude)
- Auto zero drift correction
- Self-diagnostic with a built-in test cell
- Controlled by a keypad or a PC via USB interface
- Data logger for 122 hours of data acquisition, averaging, and storage
- Rechargeable battery for up to 8 hours operation
Analyzer can be used in combination with attachments for analysis of solid and liquid samples:
- RP-92 attachment for liquid and solid samples analysis using cold vapor technique (acid digestion and chemical reduction);
- PYRO-915+ attachment for liquid and solid samples analysis using thermal decomposition technique (with thermoscanning option);
- RP-91NG attachment for direct analysis of hydrocarbon gases of complex composition.
RA-915M analyzer and attachments are covered by 12-months limited warranty.
RA-915M portable Zeeman mercury analyzer is supplied with the RAPID software, charger, shoulder bag, air intake hose, spare filters, interface cable, manuals. Attachments are available on request.
Upon request, installation and commissioning of RA-915M analyzer and attachments can be carried out at customer's site by our service engineers. Support and training of operators, meeting сustomer's specific needs, are provided by highly qualified application specialists.
| Detection limit | 0.5 ng/m3 |
| Measurement range | 0–200 000 ng/m3 |
| Analysis time | Direct real-time |
| Data logger | 122 hours data storage |
| Battery | 8 hours |
| Dimensions | 470x220x110 mm |
| Weight | 7 kg |
| Power supply | - 100–240 VAC, 50/60 Hz - Built-in battery |
| Power consumption | Max. 35 W |
The RA-915M portable mercury analyzer system enables coping with any complex problems involving mercury detection in natural media and in technological process monitoring.
Demercurization monitoring:
- search and localization of indoor and outdoor mercury contamination in continuous air analysis mode, including those performed from moving vehicles;
- monitoring of a demercurization process involving any chemical reagents;
- quality assurance of the demercurization;
- mercury assaying in construction materials and surface wash-outs.
Handling the toxicology and occupational safety problems:
- proximate analysis of biological objects (urine, blood, hair, and exhaled air) finding out risk groups;
- screening examination of population;
- finding out risk groups;
- instrumental monitoring of a mercury intoxication treatment and of the following rehabilitation.
Rapid-analysis of complex objects:
- combustible deposits (hydrocarbon gases, natural gas condensate, oil, coal, peat, and shale oil;
- raw materials and industrial products;
- ecological and geochemical samples, biological objects, foodstuffs, cosmetics, and medical preparations.
Geological and geochemical survey:
- study of mercury cycles of natural and technological origin;
- prospecting of mineral deposits;
- Mercury assaying in natural gases, water, rocks and ores.
Ecological survey:
- continuous background mercury vapor monitoring in the atmosphere;
- various ecological surveys of mercury haloes of technological origin and detection of emission sources.
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RA-915M portable Zeeman mercury analyzer |
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Solutions for mercury analysis |
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Mercury analyzers and monitors: List of scientific publications. 1990-2022 |
