Automatic laboratory mercury analyzer AULA-254 gold
The AULA-254 Gold is a fully automated system for analyzing traces of mercury in aqueous and digested samples
In contrast to a typical multi-element AAS the AULA is specially designed for mercury determination. The use of a highly stable low-pressure electrodeless mercury discharge lamp (EDL) in connection with the latest UV detector techniques result in excellent baseline stability and low detection limits.
The AULA-254 Gold system meets current regulations, with capacity in reserve to meet more stringent standards.
FEATURES & BENEFITS
- Fully automated flow analysis system
- Compact modular construction
- Proven and reliable detection method: cold vapor atomic absorption (CVAAS)
- Integrated GoldTrap for a maximum of sensitivity of <1 ng/l (can be turned off or on)
- Wide linear measuring range
- No zero drift (auto zero before each measurement)
- High productivity
- Economical: low reagent consuption
- Autosampler with up to 53 vials (turntable)
- Automatic purging after exceedance of mercury concentration
- Minimized memory effect
- Easy to operate with AULAWIN software
- Automated Sample Digester Module (ASD) for liquid samples as an optional accessory
MAIN APPLICATIONS
- Typical applications include analysis of aqueous samples that have to be digested oxidatively before reduction: surface water, groundwater, effluent, process water.
- Environmental monitoring: water, soils, sludge …
- Analysis of foodstuffs: fish, innards, plants …
- Medicine: urine, blood, saliva, hair …
- Chemical industry: process monitoring, quality control …
- Geochemistry, mining
- Petrochemistry
- Metallurgy and material testing
- Applicable to EPA Methods: 245.1, 245.7, 1631, 7470 and 7471A
| TECHNICAL SPECIFICATIONS |
| Measuring principle |
Amalgamation (MI GoldTrap), cold vapor atomic absorption (CVAAS) at 253.7 nm |
| UV-Source |
Electrodeless low pressure mercury lamp (EDL) |
| Stabilization method |
Reference beam method |
| Optical cell |
Fused silica (Suprasil), l: approx. 230mm, heated approx. 45° |
| Measuring range |
10 ng/l to 50 µg/l (GoldTrap deactivated); 1 ng/l to 5 µg/l (GoldTrap activated) |
| Detection limit: |
< 50 pg Hg (GoldTrap deactivated); < 5 pg Hg (GoldTrap activated) |
| Carrier gas |
argon (optional nitrogen), 4-6 l/h; stabilized with electronic mass flow controller |
| Sample vials |
10 ml, glass with aluminium foil disk covers |
| Sample consumption |
approx. 1 ml |
| Heating coil temperature |
approx. 98 °C (AULA-ASD only) |
| Measuring duration |
typ. 60 – 180 seconds |
| TECHNICAL DATA |
| Signal outputs |
2 x USB |
| Power supply |
230 VAC / 50 Hz (110 VAC / 60 Hz option) |
| Power consumption |
approx 100 VA (AULA-254 ASD: 120 VA) |
| Dimensions (W x H x D) |
37 x 38 x 44 cm |
| Bench space requirements |
approx. 50 x 70 cm (PC not included) |
| Weight |
approx. 14 kg (PC not included) |
APPROVALS & CERTIFICATIONS
- Compliant with DIN EN 12846
- Our products are manufactured according to the ISO 9001 quality regulations.
- CE approved
Documentation
AULA-254_Gold_automatic_mercury_analyzer_EN_1019