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RA-915M mercury analyzer with RP-92 cold vapor attachment

The set of RA-915M with RP-92 attachment is designed to determine the mercury concentration in liquid samples and digested solid samples from the very low sub-ppt level. Lumex Instruments 75

The set of RA-915M with RP-92 attachment is designed to determine the mercury concentration in liquid samples and digested solid samples from the very low sub-ppt level.

RA-915M / RP-92

The set of RA-915M with RP-92 attachment is designed to determine the mercury concentration in liquid samples and digested solid samples from the very low sub-ppt level.
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The set of RA-915M mercury analyzer with RP-92 attachment implements the conventional Cold Vapor (CV) technique for the analysis of liquid and digested solid samples, following recognized international and national standards. The technique involves acid digestion of the sample and further chemical reduction of ionic mercury to its atomic Hg(0) form. RA-915M analyzer offers a wide working range using either the multipath cell or the single-path cell.

RA-915M analyzer can be also used separately for real-time mercury measurement in ambient and indoor air. Other Lumex Instruments attachments are available to extend RA-915M functionality (PYRO-915+ for thermal decomposition technique, RP-91NG for direct analysis of hydrocarbon gases).

PRINCIPLE OF OPERATION

Cold vapor (CV) technique followed by atomic absorption spectrometry at 254 nm wavelength with Zeeman correction for background absorption makes interference-free measurements easy and quick. It provides the most selective and sensitive analysis without matrix effects.

FEATURES AND BENEFITS
  • Highly selective analysis of water, solutions; solids and biosamples after digestion
  • Ultra-low sub-ppt limit of detection
  • Wide dynamic measurement range
  • Stable calibration
  • No compressed gases; air is used as a carrier gas
  • No pre-concentration on gold traps
  • Any standard sample pre-treatment technique can be used
  • Portable RA-915M analyzer enables lab and ambient air monitoring
  • Low running and maintenance costs
APPLICATIONS

The set of RA-915M mercury analyzer with RP-92 attachment is used for environmental and geochemical studies, occupational safety and health treatment, life sciences, etc. Mercury is determined in:

  • drinking water, natural fresh- and seawater, waste water, effluents;
  • atmospheric precipitation;
  • surface washouts for demercurization control;
  • urine and biological samples (hair, blood, tissues) for population and risk groups screening; diagnostics and mercury intoxication treatment;
  • solid samples after digestion.

Cold Vapor technique complies with ISO 12846, EPA 245.1, ASTM D3223, AOAC 977.22, HJ 597-2011, GB 8538-2022, IS 3025: Part 48, IS 12041 and other standards.

warranty

The set of RA-915M mercury analyzer with RP-92 attachment is covered by a full 1-year warranty.

services

Upon request installation and commissioning of the equipment can be carried out at customer’s site by our service engineers or by certified distributor. Support and training of operators, meeting customer’s specific needs, are provided by highly qualified application specialists.

Measurement principle Cold Vapor technique combined with atomic absorption spectrometry at 254 nm with Zeeman correction of background absorption
Detection limit 0.1 ppt (ng/l)
Sampling volume 1 – 20 ml
Analysis time 1 – 2 min
Power supply 100 – 240 VAC
50 – 60 Hz
Power consumption 35 W (RA-915M analyzer)
20 W (RP-92 attachment)
Dimensions 470x220x110 mm (RA-915M analyzer)
360x225x125 mm (RP-92 attachment)
Weight 7 kg (RA-915M analyzer)
7 kg (RP-92 attachment)

Liquid Mercury Analyzer RA-915M/RP92

Webinar: Simple Mercury Analysis of Complex Samples