New direct mercury analyser from Lumex Instruments
Feb 19 2020 Read 627 Times
Lumex Instruments is happy to present the latest development – the new direct Zeeman mercury analyzer RA-915 Lab.
Thanks to the implementation of direct analysis with Zeeman correction without preconcentration step the RA-915 Lab instrument offers excellent analysis throughput and delivers lowest analysis costs due to the absence of consumables and reagents needed for analysis.
In total analysis of a sample usually takes 1- 3 minutes. That makes RA-915 Lab the fastest direct mercury analyser in the market. The scope of applications includes analysis of environmental samples (water, soil and bottom sediments, ores, air filters, plants etc), fuels (crude oil, naphtha and condensate, coal), food products (fish, crops etc), cosmetics and many more, so one analyzer can meet the requirements of virtually all applications for mercury analysis.
The fact that the instrument does not require any reagents, or argon or oxygen as a carrier gas, keeps analysis costs as low as possible.
The high-end PC-controlled combustion chamber provides optimal modes for complete sample decomposition depending on its matrice and the option of gradual sample heating from ambient temperature up to 900°C to study mercury thermospeciation.
Non-selective interferences from other absorbing compounds that may form during sample pyrolysis are removed thanks to the implementation of Zeeman AAS.
Now analysts do not need to take care of the mercury level is in the analyzed sample: the closed-loop system automatically chooses the optimal rate of atomisation depending on mercury and non-selective absorbance in the analytical cell; no data will be lost due to signal saturation. Moreover, because there are no memory effects, it is possible to correctly analyze a sample with low mercury concentration immediately after a sample with high mercury content.
The powerful software with a user-friendly interface fully complies with FDA 21 CFR part 11 requirements providing different access levels for the users.
Two versions of RA-915 Lab analyser are available - with or without the compact autosampler holding 45 positions, both having small footprint and easily handled by the operator.
The calibration of the analyser may be done using liquid or solid certified reference materials.
The RA-915Lab provides full compliance with the techniques for the analysis of solid samples by thermal decomposition and direct analysis by AAS following standard methods like, for example, EPA 7473, or ASTM 7622.
The instrument will be available for ordering in the second quarter of 2020.
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