Environmental Monitoring Solutions
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.
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| 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 |
| Reproducibility | 5% or better |
| 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) |
Talk to our sales team. Call +61 2 9622 6327
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Mercury