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Title: In situ calibration of inductively coupled plasma-atomic emission and mass spectroscopy

A method and apparatus are disclosed for in situ addition calibration of an inductively coupled plasma atomic emission spectrometer or mass spectrometer using a precision gas metering valve to introduce a volatile calibration gas of an element of interest directly into an aerosol particle stream. The present in situ calibration technique is suitable for various remote, on-site sampling systems such as laser ablation or nebulization. 5 figs.
Inventors:
Issue Date:
OSTI Identifier:
242572
Assignee:
Iowa State Univ. Research Foundation, Inc., Ames, IA (United States) PTO; SCA: 400102; PA: EDB-96:094259; SN: 96001600379
Patent Number(s):
US 5,526,110/A/
Application Number:
PAN: 8-273,024
Contract Number:
W-7405-ENG-82
Resource Relation:
Other Information: PBD: 11 Jun 1996
Research Org:
Iowa State University
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; MASS SPECTROMETERS; CALIBRATION; GAS METERS; DESIGN; EMISSION SPECTROSCOPY; OPERATION; MASS SPECTROSCOPY