Milestone's DMA-80 direct mercury analyser, based on EPA Method 7473, dramatically simplifies the analysis of mercury in both solid and liquid matrices
On 3 January 2008 the US EPA publicised the Notice of Availability of final update IV of SW-846 to the third edition of the manual 'Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,' EPA Publication SW-846.
The promulgation of EPA Method 7473, which references Milestone's DMA-80 direct mercury analyser, means that laboratories now have at their disposal a validated EPA method that will produce results comparable to cold vapour atomic absorption and ICP-MS in a fraction of the time, at a fraction of the cost.
The DMA-80 direct mercury analyser has a built-in 40 position autosampler for unattended operation; simply load a sample, walk away and start obtaining accurate, reproducible results in as little as six minutes.
Introduce a weighed sample into either a nickel or quartz sample boat and place it inside the instrument autosampler.
The sample is initially dried and decomposed and carried through a heated catalyst bed via a continuous flow of oxygen.
Mercury is trapped on a gold amalgamator and subsequently released for quantitative determination via atomic absorption spectrophotometry.
