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Isotope dilution surface ionization mass spectrometry of silver in environmental materials

Journal Article:

Abstract

Surface ionization mass spectrometry has been developed to measure isotopic abundances and concentrations of silver in commercial high-purity metals, environmental materials such as rocks and plants, and /sup 109/Ag and /sup 107/Ag spikes. A minute amount of silver is extracted into a dithizone chloroform solution from a nitric acid solution of above samples. After the silver is back-extracted into 6.0 ml of a 7 mol/l HNO/sub 3/ solution, the solution is evaporated to dryness under the nitrogen atmosphere. Silver nitrate thus formed is dissolved in a mixture of 60 ..mu..l of an 0.003% silica gel suspended water and 5 ..mu..l of a 2% phosphoric acid. An aliquot of this solution is applied to the mass spectrometry using a rhenium single filament as an ion emitter. The proposed method can detect the presence of 10/sup -14/ g of silver on the ion emitter, and measure the /sup 109/Ag//sup 107/Ag isotopic ratio in environmental materials with the accuracy of 0.1 -- 0.2% in the coefficient of variation. Isotope dilution mass spectrometry using a /sup 107/Ag spike has revealed the silver concentration in the environmental standard materials, which were prepared by the National Bureau of Standards, U.S.A. and National Institute of Environmental Studies  More>>
Authors:
Murozumi, M; Nakamura, S; Suga, K [1] 
  1. Muroran Inst. of Tech., Hokkaido (Japan)
Publication Date:
Mar 01, 1981
Product Type:
Journal Article
Reference Number:
AIX-13-667918; EDB-82-084177
Resource Relation:
Journal Name: Nippon Kagaku Kaishi; (Japan); Journal Volume: 1981:3
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BASALT; QUANTITATIVE CHEMICAL ANALYSIS; COASTAL WATERS; GRANODIORITES; LEAVES; SILVER; ISOTOPE DILUTION; MASS SPECTROSCOPY; ACCURACY; CHLOROFORM; DITHIZONE; ENVIRONMENTAL MATERIALS; NITRIC ACID; NITROGEN; PHOSPHORIC ACID; RHENIUM; SENSITIVITY; SILICA GEL; SILVER 107; SILVER 109; SOLVENT EXTRACTION; SURFACE IONIZATION; ADSORBENTS; CARBAZONES; CARBONIC ACID DERIVATIVES; CHELATING AGENTS; CHEMICAL ANALYSIS; CHLORINATED ALIPHATIC HYDROCARBONS; ELEMENTS; EXTRACTION; GRANITES; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROGEN COMPOUNDS; IGNEOUS ROCKS; INORGANIC ACIDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZATION; ISOMERIC TRANSITION ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; MATERIALS; METALS; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; PLUTONIC ROCKS; RADIOISOTOPES; REAGENTS; REFRACTORY METALS; ROCKS; SECONDS LIVING RADIOISOTOPES; SEPARATION PROCESSES; SILVER ISOTOPES; SPECTROSCOPY; STABLE ISOTOPES; SURFACE WATERS; TRACER TECHNIQUES; TRANSITION ELEMENTS; VOLCANIC ROCKS; 400102* - Chemical & Spectral Procedures; 400104 - Spectral Procedures- (-1987)
OSTI ID:
5680698
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NKAKB
Submitting Site:
HEDB
Size:
Pages: 385-391
Announcement Date:

Journal Article:

Citation Formats

Murozumi, M, Nakamura, S, and Suga, K. Isotope dilution surface ionization mass spectrometry of silver in environmental materials. Japan: N. p., 1981. Web.
Murozumi, M, Nakamura, S, & Suga, K. Isotope dilution surface ionization mass spectrometry of silver in environmental materials. Japan.
Murozumi, M, Nakamura, S, and Suga, K. 1981. "Isotope dilution surface ionization mass spectrometry of silver in environmental materials." Japan.
@misc{etde_5680698,
title = {Isotope dilution surface ionization mass spectrometry of silver in environmental materials}
author = {Murozumi, M, Nakamura, S, and Suga, K}
abstractNote = {Surface ionization mass spectrometry has been developed to measure isotopic abundances and concentrations of silver in commercial high-purity metals, environmental materials such as rocks and plants, and /sup 109/Ag and /sup 107/Ag spikes. A minute amount of silver is extracted into a dithizone chloroform solution from a nitric acid solution of above samples. After the silver is back-extracted into 6.0 ml of a 7 mol/l HNO/sub 3/ solution, the solution is evaporated to dryness under the nitrogen atmosphere. Silver nitrate thus formed is dissolved in a mixture of 60 ..mu..l of an 0.003% silica gel suspended water and 5 ..mu..l of a 2% phosphoric acid. An aliquot of this solution is applied to the mass spectrometry using a rhenium single filament as an ion emitter. The proposed method can detect the presence of 10/sup -14/ g of silver on the ion emitter, and measure the /sup 109/Ag//sup 107/Ag isotopic ratio in environmental materials with the accuracy of 0.1 -- 0.2% in the coefficient of variation. Isotope dilution mass spectrometry using a /sup 107/Ag spike has revealed the silver concentration in the environmental standard materials, which were prepared by the National Bureau of Standards, U.S.A. and National Institute of Environmental Studies of Japan, as follows; 27.9 +- 0.2 ppb for the Orchard Leaves and 34.3 +- 0.3 ppb in the Pepper Bush. The determined values of silver in the Granodiorite, JG-1, and Basalt, JB-1 powders made by the Geological Survey of Japan are 25.4 +- 0.4 ppb and 41.3 +- 0.1 ppb respectively. Silver concentration in a coastal sea water sample is found to be at the level of 2.5 +- 0.4 ppt.}
journal = {Nippon Kagaku Kaishi; (Japan)}
volume = {1981:3}
journal type = {AC}
place = {Japan}
year = {1981}
month = {Mar}
}