Direct powder injection of NBS coal fly ash in inductively coupled plasma atomic emission spectrometry with rapid scanning spectrometric detection

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00267a026· OSTI ID:5880526

Ng, K C; Zerezghi, M; Caruso, J A

A simple device is described to introduce powder as a pulse into an ICP (inductively coupled plasma). A tangential argon flow created inside the device (volume approx. 0.3 mL) mixes and carries the powder into the ICP. A 2-kW forward power with 20 L min/sup -1/ coolant argon flow ICP is sufficient for excitation. (The reflected power is less than or equal to 5 W with or without the powder entering the autotuned plasma). Transient elemental emissions obtained from 0.5 to 2.5 mg of NBS Coal Fly Ash (1633a) are monitored by using a rapid scanning spectrometer. Detection limits for Cr, Sr, Tl, V, Cu, and Zn in the coal fly ash are in the nanogram level (1, 5, 7, 3, 2, and 2, respectively). Reproducibilities for these elements are less than or equal to 12% RSD. Acceptable recoveries for diluted coal fly ash indicate the potential for using NBS SRM's as standards for similar matrix samples. Elemental emissions have been observed from all powders attempted (silicon carbide, powdered whole blood, tomato vegetable dust, and granular chromatographic grade cellulose. 15 references, 7 figures, 3 tables.

• Research Organization: Univ. of Cincinnati, OH
• OSTI ID: 5880526
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:3; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600 -- Coal
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& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
AEROSOL WASTES
AIR POLLUTION
ALKALINE EARTH METALS
ASHES
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHROMIUM
COAL
COPPER
DATA
ELEMENTS
EMISSION SPECTRA
EMISSION SPECTROSCOPY
ENERGY SOURCES
EXPERIMENTAL DATA
FLY ASH
FOSSIL FUELS
FUELS
FURNACES
INFORMATION
MATERIALS
METALS
NUMERICAL DATA
PLASMA FURNACES
POLLUTION
QUANTITATIVE CHEMICAL ANALYSIS
RESIDUES
SPECTRA
SPECTROSCOPY
STRONTIUM
TITANIUM
TRANSITION ELEMENTS
VANADIUM
WASTES
ZINC