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Home > Products > Gas Analysers > Mercury (Hg) > Mercury UT3000

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The UT-3000 Mercury UltraTracer provides a compact and reliable tool for measuring mercury in gases at ultra trace levels. Mercury UT3000

Utilizing the high performance GoldTrap amalgamation module and an optimized state-of-the-art AA-mercury vapor detector the UT-3000 UltraTracer offers detection limits at sub-ng/m3 (ppq-parts per quadrillion) levels. Utilizing the high performance GoldTrap amalgamation module and an optimized state-of-the-art AA-mercury vapor detector the UT-3000 UltraTracer offers detection limits at sub-ng/m3 (ppq-parts per quadrillion) levels.  

The UT-3000 operates automatically. All functions are controlled by an embedded microprocessor. Once the analysis has been started, measurements are performed and data is collected by the built-in datalogger.

With standard settings the datalogger has a recording capacity of 4 weeks.  For use in the UT-3000 a new trapping system has been developed: the Mercury GoldTrap, which is one of the key components of the system. It consists of a wafer thin ceramic tube which has been carefully crafted to achieve minimum thermal inertia. The tube has been packed with ultrapure gold and supports a heating coil on its outside.

The Mercury GoldTrap reveals sharp and high peaks and an excellent long-term stability. As air is used for purging the trap during the heating step, possible contaminations are oxidized and swept off thus preventing from passivation.  The detector used in the UT-3000 provides a maximum of sensitivity, precision and stability.

A high frequency driven electrodeless mercury low pressure lamp is used as UV light source. It generates a 253.7 nm emission line of an extremely narrow bandwidth which is congruent with the absorption line of the Hg atoms measured. The reference beam method is applied to get an exceedingly high stability of the UV source. The mercury concentration is measured in an optical cell which has been made entirely of fused silica (Suprasil).

Thanks to the sensitivity enhancement provided by the GoldTrap there is no need for a long path cell which always has a greater surface effect. Recent solid state UV detectors with subsequent digital signal processing are used for absorption measurement. It is essential that the trap is free of mercury before sampling. This is ensured by a cleaning step which is automatically performed. To keep particles out of the system and to protect the trap from passivation, a filter is installed upstream the sample inlet. The filter is made of low-interactive material; the filter membrane has a porosity of 0.45 µm and is made of PTFE.

The complete filter unit is easily replaceable.

 

Documentation


Brochure Mercury UT 3000 Brochure Mercury UT 3000
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Ankersmid engineers, delivers and performs service on analysis equipment, to complete CEM systems and process systems in associated analysis houses. They are used in industrial process technology, laboratories, air force, stable technology and biogas installations

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