Page 103 - Catalog Instruments and Supplies

SCP SCIENCE 103
ICP-MS & ICP-OES

Nebulizer
concentric

Dr. James E. Meinhard began fabricating concentric glass nebulizers for ICP Spectroscopy
during the technique’s infancy in 1973. The first model featured a lapped, coplanar Type
A nozzle and remains popular for use in general ICP applications. In 1983, Meinhard®
introduced the Type C nebulizer for the analysis of samples high in dissolved solids. The
Type K, designed to conserve argon, was developed in conjunction with an instrument
manufacturer the following year.
Advantages include free aspiration without a peristaltic pump as well as a reproducible and
self-aligning aerosol. Concentric nebulizers have traditionally been a preferred choice of
spectroscopist seeking low RSD and detection limits.

specifications

connectors and tubing Included Configurations: Concentric, monolithic
with each nebulizer Materials: Borosilicate Glass or Quartz
Tubulation Outer Diameter (O.D.) Shell, 6 mm; fluid inputs, 4 mm
Nozzles: A, C or K, see selection guide (above)
Internal Liquid Volume 0.1 ml
Annular Separation at Nozzle 10 - 30 µm
Provided with each unit:
Calibration : • PC: Calibration input pressure at rated argon flow
• Nominal Pc: (20, 30 or 50 psi)
• Ra: Water uptake at Pc
• Nominal Ra: (0.5, 1,2 or 3 ml/min)

Type Type A Type C Type K

End surfaces Lapped Fire-polished Lapped
Capillary tip recess None, Coplanar 0.5 mm 0.5 mm
Uptake suction, atm +
Calibration reference, Ar in L/min. + 1.0 +
Stability of aerosol delivery 1.0 + 0.7
Popular ICP applications + +
General High-Solids Ar Low-Flow