Journal article
Rapid sulfur determination in bituminous and subbituminous coal by slurry atomization inductively coupled plasma emission spectrometry
Analytical chemistry (Washington), Vol.58(14), pp.3126-3132
12/01/1986
DOI: 10.1021/ac00127a046
Abstract
In an effort to minimize sample preparation, coal slurries of unusually small particle size (median diameter ~6 μm) were produced with 20–30 min of high intensity wet grinding of bituminous and subbituminous coal. Direct nebulization of coal slurries into an argon inductively coupled plasma emission spectrometer yielded accurate sulfur determinations under the following experimental conditions: (1) small coal particle size, (2) reduced nebulizer argon flow rate, and (3) removal of obstructions such as baffles, impactor beads, and tortuous bends from the spray chamber path. When these experimental conditions were met, the new slurry atomization inductively coupled plasma emission procedure for coal analysis gave quantitative sulfur recovery. Slurry atomization analysis was performed without the aid of wet or dry ashing, solvent extraction, matrix matching, standard addition, Internal standards, or correction factors. Instead, simple aqueous standard (ammonium sulfate) calibration was sufficient to yield the same result as that certified by the NBS for sulfur in bituminous coal, SRM 1632b, and in subbituminous coal, SRM 1635.
Details
- Title: Subtitle
- Rapid sulfur determination in bituminous and subbituminous coal by slurry atomization inductively coupled plasma emission spectrometry
- Creators
- David L McCurdyRobert C Fry
- Resource Type
- Journal article
- Publication Details
- Analytical chemistry (Washington), Vol.58(14), pp.3126-3132
- DOI
- 10.1021/ac00127a046
- ISSN
- 0003-2700
- eISSN
- 1520-6882
- Publisher
- American Chemical Society
- Language
- English
- Date published
- 12/01/1986
- Academic Unit
- Chemistry
- Record Identifier
- 9983985875402771
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