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 Zeeman mercury analyzer RA-915+

The whole laboratory at your hand!
  PA 915+
  • 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.

MEASUREMENT PRINCIPLE

RA-915+ is an atomic absorption spectrometer, which employs the effect of the resonance radiation absorption by the mercury atoms.

RA-915+ ADVANTAGES

2 ng/m3 Hg in the AIR !

2 - 50 000 ng/m3 - with a multi-path cell 
5 000 - 200 000 ng/m3 - with a single-path cell
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

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
 
Principle of operation

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 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, 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.



Appications for RA-915 Analyser

Download presentation (PDF format): Mercury Determination with RA-915+ Analyser


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