RA-915W
Zeeman mercury-in-water analyzer RA-915W
RA-915W is a powerful solution specially designed for accurate mercury detection in various aqueous samples, including drinking water, natural water, seawater, wastewater, and process water. It is also suitable for determination of mercury in digested solid samples.
RA-915W
RA-915W is a powerful solution specially designed for accurate mercury detection in various aqueous samples, including drinking water, natural water, seawater, wastewater, and process water. It is also suitable for determination of mercury in digested solid samples.
RA-915W utilizes the conventional Cold Vapor (CV) technique, ensuring fast and simple mercury detection in various 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-915W is the lighter and simpler modification of the RA-915M mercury analyzer set with RP-92 attachment.
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 and memory effect.
- Ultra-low concentration detection limit: 0.5 – 2.5 ng/L (depending on reagent grade)
- Wide dynamic measurement range
- Stable calibration
- No compressed gases; air is used as a carrier gas
- No pre-concentration on gold traps, no memory effect
- Built-in performance verification test cell
- 21 CFR Part 11 compliance software
RA-915W 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, US EPA Method EPA 245.1, ASTM D3223, AOAC 977.22, HJ 597-2011, GB 8538-2022, IS 3025: Part 48, IS 12041, TCVN 7877:2008 and other standards.
RA-915W mercury analyzer is covered by a full 1-year warranty.
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 | 5 mL |
| Analysis time | 1 – 2 min |
| Power supply | 100 – 240 VAC 50 – 60 Hz |
| Dimensions | 470x110x220mm (measuring device) 360x125x225 mm (water sampling device) |
| Weight | 7 kg (measuring device) 3.1 kg (water sampling device) |
Software
![[ICO]](files/list_blank.png) | Name | Last modified | Size |
|---|---|---|---|
![[ ]](files/list_pdf.png) | Rapid installation (ENG).pdf | 2023-06-01 16:19 | 946K |
![[ ]](files/list_rar.png) | Rapid_Ver1.00.798(RA915W_RA-915WE).7z | 2025-02-21 12:49 | 37M |
| Readme(ENG).pdf | 2017-03-16 14:28 | 237K |