Aula 254 Automatic Laboratory Mercury Analyzer

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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Brand
Features & Benefits
Main Application
Technical Specifications
Technical Data
Approvals & Certifications

Brand

Envea Ambient

Avensys is the Canadian partner for environmental monitoring solutions developed by ENVEA, a global leader in emissions measurement, air quality, and industrial process control. With over 45 years of expertise, ENVEA designs innovative instruments to help industries reduce their environmental footprint while meeting the most stringent regulations. By integrating ENVEA solutions into its offering, Avensys enables organizations to enhance their environmental performance with accurate, reliable, and actionable data.

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 Application

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

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

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

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Our certified engineers and technicians can intervene from the initial consultation and planning stages, throughout the life of instruments and systems.