Lumex Mercury Analyser RA 915m


An advanced mercury analyzer RA-915m 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.
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-915m features a unique capability of performing direct, fast, and precise measurements of mercury vapor and mercury concentration in various media.
MEASUREMENT PRINCIPAL
RA-915 m 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.
RA 915 m ADVANTAGES
| Objects | Detection limit |
Sampling |
Attachments |
|---|---|---|---|
| Ambient air | 0.2-2 ng/m3 |
15 l/min |
None |
| Natural and other gases | 2 – 500 ng/m3 |
1-20 l/min |
None |
| Water | 0.2 ng/l |
1 - 20 ml |
RP-91 RP-91 RP-91C or PYRO-915 |
| Urine | 1 ng/l |
1 - 5 ml |
As Above |
| Solid samples (solids, rocks) | 0.5 μg/kg |
200 mg |
As Above |
| Blood | 1 -2 μg/kg |
0.2 mg |
PYRO-915+ PYRO-915+ PYRO-915+ PYRO-915+ PYRO-915+ PYRO-915+ |
| Biological samples (tissues, liver, etc.) | 1-5 μg/kg |
100 mg |
As Above |
| Hair | 5 μg/kg |
50 mg |
As Above |
| Oil and oil products | 1 -5 μg/kg |
100 mg |
As Above |
| Plants | 0.5- 2 μg/kg |
200 mg |
As Above |
| Foodstuff | 0.5- 3 μg/kg |
100 mg |
As Above |
PRINCIPAL OF OPERATION
Is based on the absorption of the 254-nm resonance radiation by mercury atoms using Zeeman correction for background absorption.
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
Handling the toxicology and occupational safety problems
Rapid-analysis of complex objects
Geological and geochemical survey
Natural gases
Water
Rocks and ores
Ecological survey
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 | Weight | Power supply | Power | Analysis time | |
| RA-915m Air and gas analysis |
460x210x110 mm |
7.5 kg | 240/100 VAC, 50/60 Hz 12 VDC |
20 W | Direct on-line |
| RP-91 attachment "Cold Vapor" technique |
340x240x120 mm |
4 kg | 240/100 VAC, 50/60 Hz 12 VDC |
20 W | 40-80 s |
| RP-91 attachment Pyrolysis technique |
340x240x120 |
5,5 kg | 240/100 VAC, 50/60 Hz | 150 W | 40-80 s |
| PYRO-915+ Pyrolysis technique |
350x350x120 mm (without power supply unit); 380x260x130 mm (power supply unit) |
17 kg | 240/100 VAC, 50/60 Hz |
700 W | 60-180 s |
Equipment and options
RA-915+ portable Zeeman mercury analyser with RA-915P software
RA-915+DL portable Zeeman mercury analyser with Data Logger and RA-915P software
RP-91 attachment for liquid samples
RP-91C attachment for solid samplesPYRO-915+ attachment for liquid and solid samples
For software installation a PC is necessary. Minimal system requirements: Windows®-98, Pentium 120 MHz, 20 Mb RAM, Serial COM port.
Services
Upon request installation and commissioning of RA-915m analyzer can be carried out on Customer’s site by our service engineers. Consultations and initial training of attendance personnel with due account of Customer's specific needs are performed. Spare parts are delivered and repair is made immediately upon Customer’ request (free within the warranty period).
Warranty
All of the Lumex equipment is covered by a 12-months warranty.
The RA-915m mercury analyzer complies with EPA Methods 1631, 7470, and 7471 as well as with the OSHA and FDA requirements.