Demountable direct injection high efficiency nebuliser for inductively-charged plasma (ICP) mass spectromery delivers all the advantages of direct injection without the drawbacks
Direct introduction of a liquid sample into the plasma has several advantages over the pneumatic nebuliser spray chamber arrangement, says Analysco, these being principally high analyte transport efficiency (100%), low solution uptake (1-100ul/m), and low memory effects.
These advantages can be important for example in the analysis of biological, semi-conductor and forensic samples and when the sample is expensive, hazardous or limited.
A particular benefit when coupling with chromatographic techniques is the reduction of post-column broadening.
However, direct injection is associated with some disadvantages, principally the tendency to clog when particulates are present, susceptibility to damage because of the close proximity of the nozzle to the plasma base, and the need for high-pressure pumps.
The d-Dihen (demountable direct injection high efficiency nebuliser) overcomes these disadvantages, offering significant improvements in performance and economy, says the company.
Ability to optimise operational characteristics with a finely adjustable solution capillary.
Easy replacement of solution capillary in the event of blockage or damage.
Reduced chance of accidental nebuliser tip meltdown due to increased distance of tip from plasma base.
Excellent sample-plasma interaction due to small droplet size and narrow droplet distribution.
No need for additional high-pressure pump.
