Record Display for the EPA National Library Catalog


Main Title Pre-concentration method for inductively coupled plasma-mass spectrometry /
Author Rowan, J. T. ; Heithmar, E. M.
Other Authors
Author Title of a Work
Heithmar, Eric M.
CORP Author Lockheed Engineering and Sciences Co., Inc., Las Vegas, NV.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring Systems Laboratory ; Distributed by the National Technical Information Service,
Year Published 1989
Report Number EPA 600-4-89-043; 68-03-3249; EPA-68-03-3249
Stock Number PB90-181348
OCLC Number 37417546
Subjects Plasma (Ionized gases) ; Spectrum analysis
Additional Subjects Mass spectroscopy ; Plasmas(Physics) ; Tests ; Tables(Data) ; Graphs(Charts) ; Isotopes ; Concentrating ; Inductively coupled
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-4-89-043 Headquarters Library/Washington,DC 04/17/2018
NTIS  PB90-181348 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 44 pages : illustrations ; 28 cm
A semi-automated system is used to pre-concentrate Ti, V, Mn, Fe, Co, Ni, Cu, Cd, and Pb. The pre-concentration system accepts digests with acid concentrations equivalent to 0.8% - 1.4% nitric acid, neutralizes them and loads them onto a macroporous iminodiacetate resin. The alkali and alkaline earth metals, along with deleterious anions such as chloride, are washed off the resin before the concentrated analytes are eluted with nitric acid. A total of 13 isotopes of the analytes are measured. An examination of the apparent concentration efficiencies, as well as the behavior of two internal standard elements added to the eluant stream, indicates that the elution front matrix enhances the ICP-MS response of the analytes. Investigation of the nature of the blank signals suggests that the detection limits of several of the isotopes could benefit by much larger pre-concentration factors, while those of copper, cadmium and lead are currently limited by reagent purity and laboratory contamination.
"EPA 600-4-89-043"--Cover. "November 1989"--Cover. "Contract 68-03-3249." "Pre-issue copy"--Cover. "Project officer, E.M. Heithmar."