Technique determines the percentage of Carbon, Hydrogen, and Nitrogen in difficult to analyse volatile samples.
The CHN microanalysis of volatile samples such as petroleum products and lubricants requires careful sample handling, wide detector linearity and easy sample residue removal.
The sample preparation technique developed by Exeter Analytical, involves hermetically sealing samples into heavy walled tin capsules under an inert atmosphere inside a glove box.
The tin capsule is then cold welded shut using an Exeter Analytical capsule sealer.
Exeter Analytical claims this careful sample preparation technique together with controlled introduction of the sealed capsules into an Exeter Analytical Model 440 CHN analyser eliminates the problems associated with analysing air sensitive, hygroscopic and volatile samples.
Featuring a horizontal furnace design, the Exeter Analytical Model 440, allows analysts to routinely and simply produce accurate and precise data on wide ranging sample types without system re-optimisation, saving precious time and reducing running costs.
Its features are particularly aimed at laboratories analysing filtered environmental samples, organic sediments, volatile liquids and time-dependent combustible samples.
