 |
New portable multifunctional
mercury analyzer RA-915+
|
|
|
The whole laboratory at your hand!
|
|
- ULTRA LOW DETECTION LIMIT
- DIRECT MESUREMENTS WITHOUT PRELIMINARY MERCURY CONCENTRATION ON SORBENTS
- HIGH SELECTIVITY OF ANALYSIS
- WIDE RANGE OF APPLICATIONS
|
|
Mercury is among most abundant environmental pollutants which adversely affects ecological systems and human beings. It shows high toxicity, mobility, and ability of accumulation in trophic chains of water and continental biocenosis. Therefore, it is recognized to be one of the most hazardous global environmental pollutants.
Mercury penetrates into human organisms through breathing and with foodstuffs contaminated by methylated mercury (primarily, with fish and other seafoods).
Laboratories involved in environmental monitoring and safeguarding public health care need means for rapid and reliable analysis of mercury contamination in the environment and human beings.
Multifunctional portable mercury analyzer RA-915+ features a unique capability of performing
direct, fast, and precise measurements of mercury concentration in various media.
RA-915+ is an atomic absorption spectrometer, which employs the effect of the resonance radiation absorption by the mercury atoms.
- Proprietary scheme of the Zeeman correction for non-selective absorption provides high measurement accuracy irrespective of interfering
factors, such as dust, aerosols, absorbing gases and vapors.
- Multipath cell with an effective optical length of 10 m provides the highest measurement
sensitivity.
2 ng/m3 Hg in the AIR !
- Ultra low detection limit
- High selectivity of analysis
- Direct continuous mercury determination (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 atmospheric air
- Direct analysis of complex gas mixtures
- On-line measurements
- Wide dynamic range of the direct measurements:
2 – 50 000 ng/m3 - with a multi-path cell
5 000 – 200 000 ng/m3 - with a single-path cell
- Measurements from moving objects
| Analytical characteristics
|
| Subject |
Detection limit |
Pumping rate |
Technique |
|
Ambient air |
2 ng/m3 |
20 l/min |
Direct continuous measurements
with a response time of 1 sec |
|
Natural and other gases |
2 – 500 ng/m3 |
5 – 20 l/min |
|
0.5 ng/l in WATER
- Measuring low mercury concentrations in potable and natural water
- Mercury concentration monitoring in sewage and drain water
- Mercury detection in blood, urine, and other liquids
Principle of operation – "Cold Vapor" Technique
Reducing agent, SnCl2, is added to a sample, and the atomic mercury thereby produced then enters the analytical
cell.
| Analytical characteristics
|
| Subject |
Detection limit |
Sample volume |
Rate of analyses,
samples per hour |
| Water |
0.5 ng/l |
20 ml |
15 |
| Urine |
5 ng/l |
1 ml |
15 |
| Blood |
0,5 µg/l |
0.2 ml |
15 |
|
0.5 µg/kg in SOIL AND SEDIMENTS
- Direct mercury assaying in complex-matrix samples without sample preparation
- Visualization of mercury egress from a sample
Analysis is carried out using an RP-91C attachment. Mercury, which is present in various chemical compounds, is sublimated and atomized in a two-stage pyrolysis
reactor.
To prepare for most of the measurements, a sample should be merely weighed.
| Analytical characteristics
|
| Subject |
Detection limit |
Sample weight |
Rate of analyses,
samples per hour |
| Oil and condensate |
50 µg/kg |
10 mg |
15 |
| Solid and
sediments |
0.5 µg/kg |
200 mg |
15 |
| Tissues |
5 μg/kg |
10 mg |
15 |
| Hair |
20 µg/kg |
10 mg |
15 |
| Plants |
2 µg/kg |
50 mg |
15 |
| Foodstuffs |
2 - 10 µg/kg |
5 –50 mg |
15 |
|
THE RA-915+ PORTABLE MERCURY ANALYZER SYSTEM ENABLES COPING WITH ANY COMPLEX PROBLEMS INVOLVING DETERMINATION OF MERCURY IN NATURAL MEDIA AND IN TECHNOLOGHICAL 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
- Screening examination of population
- Proximate analysis of biological objects (urine, blood, hair, and exhaled air)
- Finding out risk groups
- Instrumental monitoring of a mercury intoxication treatment and of the following rehabilitation
Rapid-analysis of complex objects
- Raw materials and industrial products
- Ecological and geochemical samples, biological objects, foodstuffs, cosmetics, and medical preparations
- Combustible deposits (hydrocarbon gases, natural gas condensate, oil, coal, peat, and shale oil)
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 mercury background monitoring in the atmosphere
- Various ecological surveys of mercury haloes of technological origin and detection of emission sources
All functions of the instrument are microprocessor controlled and activated via the hand-held detachable keypad and by a local or remote computer.
| Specifications
|
| |
Size,
mm |
Weight, kg |
Power supply |
Power consumption, W |
Rate of analyses per hour |
Nonstop operating time, hours |
| RA-915+(air) |
460x210x110 |
7.5 |
220/110 V a.c., 50/60 Hz
10/14 V d.c. |
15 |
|
|
RP-91
"Cold Vapor"
Attachment |
340x240x120 |
4 |
220/110 V a.c., 50/60 Hz
6 V d.c. |
15 |
12 – 15 |
8 |
RP-91C
Pyrolysis Attachment |
340x240x120 |
5.5 |
220/110 V a.c., 50/60 Hz |
250 |
6 – 8 |
8 |
|
| Recommended complete delivery set and options
|
| |
Air |
Liquids |
Complex-matrix samples |
|
RA-915+ Analyzer |
* |
* |
* |
|
RP-91 Attachment |
|
* |
|
|
RP-91C Attachment |
|
|
* |
|
1 – 5 ml micropipette |
|
* |
|
|
IBM-compatible PC with Windows95/98 Software |
* |
* |
* |
|
Installation & Commissioning |
* |
* |
* |
|
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).
Warranty
All of the Lumex equipment is covered by a 12-months warranty.
The RA-915+ mercury analyzer complies with EPA Methods 1631, 7470, and 7471 as well as with the OSHA and FDA requirements.
|
|