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A comparison of trace level concentrations for silver, arsenic, barium, cadmium, and lead in drinking waters obtained by inductively coupled plasma-mass spectrometry and electrothermal-vaporization atomic absorption spectroscopy

Technical Report ·
OSTI ID:5935321
; ; ;
We compared the data obtained by inductively coupled plasma-mass spectrometry (ICP-MS) and electrothermal-vaporization atomic absorption spectroscopy (ETVAA), for concentration values of silver, arsenic, barium, cadmium, and lead in drinking water specimens, spiked analyte recoveries, and control samples. Our goal was to obtain Environmental Protection Agency approval for the ICP-MS as an alternate analytical technique. We obtained similar concentrations for those metals in the natural waters by both methods. Several of the spike recoveries and control sample recoveries, however, varied significantly. Those recoveries indicated a greater level of confidence for the arsenic and barium analytical data obtained using the ICP-MS method. In addition, ICP-MS has rapid multielement analytical technique capabilities with limits of quantification and data confidence comparable to those of ETVAA. Those multielement capabilities and the relative ease of obtaining data make ICP-MS the preferred analytical technique. 5 refs., 8 tabs.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5935321
Report Number(s):
LA-11095-MS; ON: DE88001629
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METALS
ARSENIC
BARIUM
CADMIUM
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
DRINKING WATER
ELEMENTS
HYDROGEN COMPOUNDS
LASL
LEAD
MASS SPECTROSCOPY
METALS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SEMIMETALS
SILVER
SPECTROPHOTOMETRY
SPECTROSCOPY
TRACE AMOUNTS
TRANSITION ELEMENTS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WATER