Rainwater analysis: A comparison between proton-induced X-ray emission and graphite furnace atomic absorption spectroscopy
- Univ. of Lund (Sweden)
Rainwater was collected and analyzed for trace metals by graphite furnace atomic absorption spectroscopy (GFAAS) and proton-induced x-ray emission (PIXE). For the PIXE analysis, a nonselective preconcentration technique was used to dry the samples onto polystyrene films. Good agreement was found in the concentrations for the elements determined in common (Cu, Fe, Mn, Pb, and Zn), even though the PIXE analysis had some problems with sample contamination. An advantage of the PIXE analysis is that 26 elements can be determined simultaneously. The elements P, S, K, Ca, V, Mn, Fe, Ni, Zn, As, Br, and Pb had concentrations significantly higher than the chemical blank and detection limits and thus could be routinely analyzed by PIXE. The technique is promising for the other elements Ti, Cr, Co, Cu, Ga, Ge, Se, Rb, and Sr because considerable improvements in detection limits can be achieved by lowering the content of the blank and by increasing the analysis time.
- OSTI ID:
- 5298237
- Journal Information:
- Environmental Science and Technology; (USA), Vol. 22:5; ISSN 0013-936X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
RAIN WATER
CHEMICAL ANALYSIS
ABSORPTION SPECTROSCOPY
ARSENIC
BROMINE
CALCIUM
CHROMIUM
COBALT
COMPARATIVE EVALUATIONS
COPPER
GALLIUM
IRON
LEAD
MANGANESE
MEASURING METHODS
MULTI-ELEMENT ANALYSIS
NICKEL
PHOSPHORUS
PIXE ANALYSIS
POTASSIUM
RUBIDIUM
SELENIUM
STRONTIUM
SULFUR
TITANIUM
VANADIUM
ZINC
ALKALI METALS
ALKALINE EARTH METALS
ELEMENTS
HALOGENS
HYDROGEN COMPOUNDS
METALS
NONDESTRUCTIVE ANALYSIS
NONMETALS
OXYGEN COMPOUNDS
SEMIMETALS
SPECTROSCOPY
TRANSITION ELEMENTS
WATER
X-RAY EMISSION ANALYSIS
400102* - Chemical & Spectral Procedures