Sample nebulizer and evaporation chamber for ICP and MIP emissio

Details Sample nebulizer and evaporation chamber for ICP and MIP emissio Sample nebulizer and evaporation chamber for ICP and MIP emissio

1994-12-14

1996-07-09

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356 36, 250288, G01N 100, G01N 2173, H01J 4904

Patent

active

055349986

ABSTRACT:
The invention provides a nebulizer and spray chamber (3) for producing an aerosol (7) suitable for feeding into the plasma torch of an ICP or MIP emission or mass spectrometer. The aerosol (7) is subjected to rapid radiative heating (26) to evaporate the smaller droplets to dryness and preferably to cause the larger droplets to disintegrate into smaller droplets before they are completely evaporated. Nebulizer/spray chamber combinations according to the invention have higher sample transport efficiency than prior types. Optical and mass ICP and MIP spectrometers incorporating the nebulizer and spray chamber are also disclosed.

REFERENCES:
patent: 3438711 (1969-04-01), Hell
Blakley et al, Journal of Chromatography, vol. 158, 1978 pp. 261-276.
Goulden et al, Analytical Chemistry, vol. 56, No. 3, Nov. 1984, pp. 2327-2329.

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