Elemental speciation via high-performance liquid chromatography combined with inductively coupled plasma atomic emission spectroscopic detection: application of a direct injection nebulizer
An evaluation is presented of a direct injection nebulizer (DIN) interfaced to a high-performance liquid chromatograph (HPLC) with inductively coupled plasma atomic emission spectroscopic (ICP-AES) detection for simultaneous multielement speciation. The limits of detection (LODs) obtained with the DIN interface in the HPLC mode were found to be comparable to those obtained by continuous-flow sample introduction into the ICP, or inferior by up to only a factor of 4. In addition, the DIN allowed for the direct injection into the ICP of a variety of common HPLC solvents (up to 100% methanol, acetonitrile, methyl isobutyl ketone, pyridine, and water). The HPLC-DIN-ICP-AES system was compared to other HPLC-atomic spectroscopic detection techniques and was found to offer substantial improvement over the alternative on-line, detection methods in terms of LODs. Representative applications of the HPLC-DIN-ICP-AES system to the elemental speciation of coal process streams, shale oil, solvent refined coal, and crude oil are presented.
- Research Organization:
- Iowa State Univ., Ames
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6654302
- Journal Information:
- Anal. Chem.; (United States), Vol. 59:6
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
02 PETROLEUM
04 OIL SHALES AND TAR SANDS
ARSENIC
EMISSION SPECTROSCOPY
LIQUID COLUMN CHROMATOGRAPHY
CHROMIUM
MERCURY
NICKEL
PETROLEUM
QUANTITATIVE CHEMICAL ANALYSIS
PROCESS SOLUTIONS
SELENIUM
SHALE OIL
SOLVENT-REFINED COAL
SULFUR
ZINC
EXPERIMENTAL DATA
INJECTION
MIXTURES
PLASMA
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
INTAKE
METALS
MINERAL OILS
NONMETALS
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEMIMETALS
SEPARATION PROCESSES
SOLUTIONS
SPECTROSCOPY
TRANSITION ELEMENTS
400102* - Chemical & Spectral Procedures
010600 - Coal
Lignite
& Peat- Properties & Composition
023000 - Petroleum- Properties & Composition
040500 - Oil Shales & Tar Sands- Properties & Composition
400105 - Separation Procedures