Analysis of high-purity graphite for trace elements by inductively coupled plasma atomic emission spectrometry after chelating resin preconcentration

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00253a059· OSTI ID:5034782

Mahanti, H S; Barnes, R M

High-temperature ashing of graphite samples using magnesium nitrate as an ashing aid followed by dissolution in a mixture of HCl and HNO/sub 3/ is found to be the preferred method of sample preparation. The use of the magnesium nitrate as the ashing agent does not affect the results of the experiments because the analytes are separated from the magnesium solution by the poly(dithiocarbamate) and poly(acrylamidoxime) resins. The use of these reagents enhances the capability of inductively coupled plasma atomic emission spectrometry method. The concentrations of the six elements investigated agree well with the manufacturer's certified concentrations. The use of electrothermal vaporization permits analyses with a smaller final solution volume than does nebulization. 4 tables.

• Research Organization: Univ. of Massachusetts, Amherst
• OSTI ID: 5034782
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 55:2; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
400105* -- Separation Procedures
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM
AMIDES
AMINES
AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
AQUEOUS SOLUTIONS
AROMATICS
CARBAMIC ACID ESTERS
CARBON
CARBOXYLIC ACID ESTERS
CHELATES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
COMPLEXES
COPPER
DATA
DISPERSIONS
DRY ASHING
ELEMENTAL MINERALS
ELEMENTS
EMISSION SPECTRA
ESTERS
EXPERIMENTAL DATA
GRAPHITE
HIGH TEMPERATURE
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
HYDROXIDES
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
IRON
MAGNESIUM COMPOUNDS
MAGNESIUM NITRATES
MEDIUM TEMPERATURE
METALS
MINERALS
MIXTURES
NITRATES
NITRIC ACID
NITROGEN COMPOUNDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
OXIMES
OXYGEN COMPOUNDS
PEROXIDES
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
QUANTITATIVE CHEMICAL ANALYSIS
RESINS
SAMPLE PREPARATION
SEMIMETALS
SILICON
SOLUTIONS
SPECTRA
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TITANIUM
TRANSITION ELEMENTS
VANADIUM
VERY HIGH TEMPERATURE