Rapid coal analysis. Part II: Slurry atomization DCP emission analysis of NBS coal
A McCrone Micronising Mills is used to wet grind NBS bituminous coal to a median particle diameter of 5.7 m within 10 min. The finely divided coal slurry is immediately nebulized without sieving into a three-electrode DCP for accurate trace element determinations within 15 min overall lapsed time. Three important parameters contribute to near-quantitative elemental recovery without the use of wet or dry ashing, matrix matching, standard additions, as correction factors. These parameters are: (1) extremely small coal particle size, (2) spray chamber conditions favoring unusually efficient characteristic of the hot DCP. Near-unity response factors are observed for the rapid DCP emission determination of trace metals in finely divided coal slurry. Calibration may therefore be performed simply with aqueous standards. The slurry method gives near quantitative agreement between experimental and certified values for Cr, Cu, Mg, Mn, Ni, and Pb in NBS bituminous coal.
- Research Organization:
- Department of Chemistry, Willard Hall, Kansas State University, Manhattan, Kansas 66506
- OSTI ID:
- 6410606
- Journal Information:
- Appl. Spectrosc.; (United States), Vol. 39:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BITUMINOUS COAL
QUANTITATIVE CHEMICAL ANALYSIS
CHROMIUM
EMISSION SPECTROSCOPY
COPPER
STANDARDS
LEAD
MAGNESIUM
MANGANESE
NICKEL
ATOMIZATION
CALIBRATION
CHEMICAL PREPARATION
ELEMENTS
PARTICLE SIZE
SAMPLE PREPARATION
SLURRIES
TRACE AMOUNTS
US NBS
ALKALINE EARTH METALS
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
METALS
MIXTURES
NATIONAL ORGANIZATIONS
SIZE
SPECTROSCOPY
SUSPENSIONS
SYNTHESIS
TRANSITION ELEMENTS
US DOC
US ORGANIZATIONS
010600* - Coal
Lignite
& Peat- Properties & Composition