Dual inductively coupled plasma atomic emission spectroscopy

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6962301

Allen, G M

A dual inductively coupled plasma (ICP) atomic emission spectroscopic system is described. This entirely new analytical discharge segregates the processes of sampling and excitation characteristic of spectrochemical sources. A low-power low-argon flow radio frequency plasma is used as a sampling device for liquid and solid samples. The resultant gaseous species are subsequently transported to a second plasma for excitation. Design and details of instrumentation construction and associated operational parameters are presented. A comparison of the sampling and excitation plasmas includes spatial emission profiles, linear calibration plots, signal-to-background and ion/atom ratios, and detection limits. Application of the dual ICP to direct analysis of particulates (coal fly ash) is demonstrated. In the case of direct solid insertion this approach results in improved analytical performance when compared to conventional ICP spectroscopic systems. It may also provide fundamental information related to several important spectrochemical processes.

• Research Organization: Wayne State Univ., Detroit, MI (USA)
• OSTI ID: 6962301
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
ASHES
CARBONACEOUS MATERIALS
COAL
EMISSION SPECTROSCOPY
ENERGY SOURCES
FLY ASH
FOSSIL FUELS
FUELS
MATERIALS
PARTICLES
PARTICULATES
PLASMA
RESIDUES
SPECTROSCOPY
WASTES