Teledyne CETAC Aridus Desolvating Nebulizer System

The Aridus System combines the Aspire PFA nebulizer with a custom-designed heated PFA spray chamber. With a normal sample uptake rate of 100 µl/min, the Aridus can enable the determination of all required elements with < 1 mL of sample. As all wetted parts are made of inert materials, the Aridus allows the introduction of both non-HF-containing and HF-containing samples with a single sample introduction system The schematic below illustrates the operation of the Aridus System. Sample vapor from the heated PFA spray chamber passes into a heated fluoropolymer membrane. A counter-current flow of argon sweep gas is used to remove solvent vapors that permeate the membrane. A low-flow of nitrogen gas can be added after the membrane to further enhance ICP-MS sensitivity.