Thursday, June 11, 2009

ICP - Babington-Type-NebuHzer

Babington nebulizers include several specifically configured devices that are based on a common feature. This feature involves the process of passing the nebulizer gas through an orifice over which the sample is flooded in excess volume. This results in a nebulizer that is relatively immune to clogging or plugging due to suspended material or high dissolved concentration solids.

The USGS Babington nebuUzer is consists of a glass tube with a hemispherical end and a 0.1-mm-diameter orifice in the side. This tube is mounted in a PTFE housing with a sample delivery tube positioned directly above it. Argon gas passes through the orifice at about 600 mL/min.
Sample is introduced through the top delivery tube as 3-5 mL/min.
An aerosol is produced when a thin film of sample flows over the orifice from the top.
The primary advantage of this nebulizer is its ability to produce an aerosol from virtually any liquid material, irrespective of viscosity or suspended solids content.
The performance, in terms of precision and sensitivity is essentially equivalent to the concentric or cross-flow nebulizers.

No comments:

Post a Comment