| Main Title |
Pre-concentration method for inductively coupled plasma-mass spectrometry / |
| Author |
Rowan, J. T. ;
Heithmar, E. M.
|
| Other Authors |
|
| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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 |
| Abstract |
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. |
| Notes |
"EPA 600-4-89-043"--Cover. "November 1989"--Cover. "Contract 68-03-3249." "Pre-issue copy"--Cover. "Project officer, E.M. Heithmar." |
