Analytik Jena Mercur atomic fluorescence spectrometer from Lambda Advanced Technology is a compact system optimised for the complete, cost-efficient determination of mercury traces to sub-ppt levels
The Mercur combines atomic fluorescence with the cold vapour technique and guarantees mercury analyses in accordance with EPA245.7 and EPA1631-EN12338.
The cold vapour technique converts mercury into the gaseous state, almost completely eliminating interferences and matrix effects to give excellent accuracy and low detection limits.
An optional autosampler makes the Mercur highly automated and easy to operate, with a high sample throughput.
Fast analysis is achieved by using continuous flow operation with or without the autosampler plus the unique FBR routine (fast baseline return), which minimises measurement time by increasing argon flow.
Automated, intelligent gas- liquid control ensures minimum reagent consumption and short measurement times in various operating modes.
The 'mercur' can be adapted to varied analytical tasks, by choosing between three enrichment modes: no enrichment, simple enrichment, and cascade enrichment.
The cascade enrichment feature, compliant to EPA 1631 requirements, comprises two coupled gold collectors, which ensures clean separation of the matrix and prevents quenching effects - thus providing maximum dependability even with complex samples.
Enrichment times can be varied to match the sample matrix or the expected mercury concentration range.
The system is extremely safe through the use of a bubble sensor.
If a liquid threatens to spill into the system, this sensor causes the valves to close, and the liquid is automatically transferred to the waste container.
Positioned between the gas-liquid separator and a specially optimised drying membrane, it protects the gold collector and the fluorescence cell against contamination.
