Determination of iron in serum and water by resonance ionization isotope dilution mass spectrometry
Journal Article
·
· Anal. Chem.; (United States)
Resonance ionization mass spectrometry has been used in conjunction with isotope dilution to determine the iron content of SRM 909 (Human Serum) and SRM 1643b (Trace Elements in Water). Iron was thermally vaporized from a filament at 1250 K. A one-wavelength, two-photon ionization scheme was employed utilizing UV light at 283.6 nm provided by a Nd:YAG pumped dye laser with frequency doubling. The linearity of the detection system was verified by the determination of the /sup 57/Fe//sup 56/Fe ratios in a set of gravimetrically prepared isotopic calibration mixes. The precision and accuracy of the measurements were typically 2-3%. The mass spectrometric loading blank is presently the limiting source of error. The concentration and uncertainty (95% confidence limits) of Fe in SRM 909 are 1.94 +/- 0.29 ..mu..g/g; in SRM 1643b they are 99.2 +/- 8.3 ng/g.
- Research Organization:
- National Bureau of Standards, Gaithersburg, MD
- OSTI ID:
- 5566256
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:12; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
550500 -- Metabolism
552000 -- Public Health
560306 -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
99 GENERAL AND MISCELLANEOUS
BLOOD SERUM
CHEMICAL ANALYSIS
DATA
DYE LASERS
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
FREQUENCY CONVERTERS
HYDROGEN COMPOUNDS
INFORMATION
IRON
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
LASERS
LIQUID LASERS
MASS SPECTROSCOPY
METALS
NEODYMIUM LASERS
NUMERICAL DATA
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
RESONANCE IONIZATION MASS SPECTROSCOPY
SOLID STATE LASERS
SPECTROSCOPY
TRACE AMOUNTS
TRACER TECHNIQUES
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
VERY HIGH TEMPERATURE
WATER
400104* -- Spectral Procedures-- (-1987)
550500 -- Metabolism
552000 -- Public Health
560306 -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
99 GENERAL AND MISCELLANEOUS
BLOOD SERUM
CHEMICAL ANALYSIS
DATA
DYE LASERS
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
FREQUENCY CONVERTERS
HYDROGEN COMPOUNDS
INFORMATION
IRON
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
LASERS
LIQUID LASERS
MASS SPECTROSCOPY
METALS
NEODYMIUM LASERS
NUMERICAL DATA
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RADIATIONS
RESONANCE IONIZATION MASS SPECTROSCOPY
SOLID STATE LASERS
SPECTROSCOPY
TRACE AMOUNTS
TRACER TECHNIQUES
TRANSITION ELEMENTS
ULTRAVIOLET RADIATION
VERY HIGH TEMPERATURE
WATER