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Zeeman mercury analyzer RA-915+ |
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An advanced mercury analyzer RA-915+ is a unique all-purpose high sensitivity analytical instrument for the environmental monitoring, especially for the real time detection of mercury vapor in air, mercury detection in water, natural and stack gases, oil and condensate, solid and sediments, foodstuff and so on.
RA-915+ Mercury Analyzer is a portable multifunctional atomic absorption spectrometer with Zeeman background correction, which eliminates the effect of interfering impurities. It is the only high sensitivity and selectivity instrument that does not require gold amalgam pre-concentration and subsequent regeneration steps. This enables the user to conduct real time monitoring and detection of a mercury vapor. Being combined with an RP-91 Cold Vapor accessory for water and RP-91C pyrolysis attachment for solid sample testing, the instrument is designed to determine mercury content in ambient air, water, soil, natural and stack gases, dental and medical testing and diagnostics, analysis of food and marine life, etc., the mercury detection limits being as low as 2 ng/m3 in air and 0.5 ng/l in water.
Analytical characteristics
| Subject | Detection limit | Sampling | Analysis technique | Equipment | | Ambient air | 2* ng/m3 | 20 l/min | Direct | RA-915+ | | Natural and technological gases | 100-500 ng/m3 | 1-20 l/min | Direct | RA-915+ | | Water | 0.0005 µg/l | 20 ml | Cold vapor | RA-915+/RP-91 | | Blood | 0.5 µg/l | 1.5 ml | Cold vapor | RA-915+/RP-91 | | Urine | 0.005 µg/l | 1 ml | Cold vapor | RA-915+/RP-91 | | Solid samples (solids, rocks) | 1.0 µg/kg | 0.3 g | Direct Pyrolysis | RA-915+/RP-91C | | Biological samples (tissues, liver, etc.) | 0.5-3 µg/kg | 0.1-0.5 g | Direct Pyrolysis | RA-915+/PYRO-915+ | | Oil and oil products | 1-5 µg/kg | 0.05-0.2 g | Direct Pyrolysis | RA-915+/PYRO-915+ | | Foodstuffs and plants | 0.5-3 µg/kg | 0.1-0.5 g | Direct Pyrolysis | RA-915+/PYRO-915+ |
| principle of operation | | |
| Atomic absorption with Zeeman background correction.
| features and benefits | | |
| - ultra low detection limit;
- high selectivity of analysis;
- direct continuous mercury detection (without preliminary mercury concentration on a sorbent);
- capability of operation in the field using a built-in battery;
- user-friendly computer interface;
- background monitoring of mercury vapor;
- direct analysis of complex gas mixtures;
- on-line measurements;
- wide dynamic range of the direct measurements;
- measurements from moving objects;
- data logger.
| areas of application | | |
| The RA-915+ 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.
| equipment and options | | |
| - RA-915+ portable Zeeman mercury analyser with RP-915P software;
- RA-915+DL portable Zeeman mercury analyser with Data Logger and RP-915DL software;
- RP-91 attachment for liquid samples;
- RP-91C attachment for solid samples;
- new pyrolyzer PYRO-915+.
| warranty | | |
| All of the Lumex equipment is covered by a 12-months warranty.
| services | | |
| | On customer’s request our service engineers can carry out installation and commissioning of the Lumex instruments at customer’s site. Consultations and initial training of attendance personnel are provided with due account of customer’s specific needs. Spare parts are delivered and repair is made immediately upon customer’s request (free within the warranty period). |
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