OneNeb

OneNeb utilizes Flow Blurring^® technology to produce effective nebulization. Nebulization is the process by which liquid samples are converted into a fine aerosol, thereby enabling large amounts of sample aerosol to reach the plasma.

Flow Blurring^® technology produces a highly turbulent mixing between gas and liquid, generating an aerosol with extremely fine droplets.

ICP instrument performance is greatly determined by the quality of the aerosol generated by the nebulizers. Performance improves when big drops are removed from the nebulization gas flow, and a spray chamber is located after the nebulizers to achieve this goal. OneNeb Nebulizers generate very fine and reproducible primary aerosols which are mainly formed by droplets with a mean diameter below the cut-off diameters of the spray chambers usually used in ICP liquid-sample introduction systems. As a result, the aerosol lost inside the spray chambers is reduced and sample transport to the plasma is higher than with other pneumatic nebulizers, even at high liquid uptake rates (i.e., 1 mL min^-1).

Any spray chamber design is suitable for use in conjunction with OneNeb Nebulizers. However, best ICP results are obtained with Cyclonic spray chambers.

OneNeb Nebulizers can work under a wide range of physical parameters (i.e., liquid uptake and gas flow) which can be adjusted to obtain optimum ICP analytical performance.

The cut-off diameter of the spray chamber used determines the amount of sample aerosol which reachs to the plasma. The lower the liquid-uptake rate, the higher the available energy to generate surface. Consequently, smaller aerosol droplets are produced and highly transport sample aerosol is obtained.

OneNeb Nebulizers do not provide self-aspiration. Liquid samples must be pumped to the nebulizers by a peristaltic pump or a similar device. Suitable pump tubing is recommended (selection based on the application type) as well as proper maintenance (periodic replacement).

Nebulizers could pulsate if the pump is unable to deliver constant and stable sample flow. Change your pump tubing often.
Working at low liquid uptake flows, the peristaltic pump speed largely affects nebulizer stability. Select a tubing size that allows the pump to run at medium/high speed when working at low liquid uptake rates.

OneNeb Nebulizers are made by polymeric material increasing their chemical resistance. Therefore, they can be used with simple aqueous solutions, organic solvents and highly concentrated acids, even with HF low contents (≤ 10%), H₂SO₄ medium contents (≤ 25%) and aqua regia.
OneNeb Nebulizers can also be used with high solid content solutions because the contact between the liquid aerosol and the outlet is highly reduced with Flow Blurring configuration.

Although no special washing protocol is required, it is particularly important to rinse the nebulizer at the end of a session, before turning the plasma off. Rinse with pure water for a few minutes and allow the nebulizer to dry before turning off the gas.