Atomic fluorescence flame spectrometry is compared with atomic absorption flame spectrometry with respect to: instrumentation, including the general systems, the sources of excitation, the entrance optics and monochromator, the flame cell-burner system, a...
National Technical Information Service (NTIS)
A simple and rapid procedure for measuring total mercury in fish tissues is evaluated and compared with conventional techniques. Using an automated instrument incorporating combustion, preconcentration by amalgamation with gold, and atomic absorption spectrometry (AAS), mill...
EPA Science Inventory
Atomic emission, atomic absorption, and atomic fluorescence flame spectrometry were critically compared theoretically and methodologically. Line radiance expressions for limiting cases are given for each method. These expressions are used to predict the s...
... Accession Number : ADA278263. Title : Ultraviolet Absorption Spectrometry (UVAS) and Liquid Atomic Emission Spectrometry (LAES. ...
DTIC Science & Technology
The authors describe the principle of inductively coupled argon plasma emission spectrometry (ICP) to determine inorganic compounds in biological samples. This method is compared with more classical electrothermal flame atomisation absorption spectrometry. The association of ICP with different instruments is ...
PubMed
The authors 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 wate...
Some spectral effects in atomic absorption spectrometry are reported for magnesium--terbium and osmium--chromium interference. (JFP)
Energy Citations Database
absorption spectrometry. Its design was based on that of the ATMOS ... the composition of the Earth's atmosphere by solar occultation spectrometry. The ...
NASA Website
A review is made of the progress achieved in the last 15 years in the field of trace characterization of powders by direct atomic-absorption spectrometry. The studies covered include the development of novel atomization devices, modification of existing atomic-absorption spectrometers, and the use of closed-cavity vaporizers. A ...
... was compared with measurements obtained by using ash weight, nondestructive neutron activation analysis, and flame atomic absorption spectrometry analysis.6,7 Peripheral quantitative computed ... ...
NBII National Biological Information Infrastructure
... dried and oxidized.5 The trapped 14CO2 and radioactivity in the leaf rinsate were quantified by liquid ... spectrometry.6 Absorption was computed by comparing the radioactivity recovered in the entire pla...
The uranium concentration in 59 samples of bottled and tap water, mainly from northern Italy, was measured by different techniques. Results obtained by inductively coupled plasma mass spectrometry (ICP-MS), semiconductor alpha spectrometry and low level liquid scintillation counting with alpha/beta discrimination (LSC) have been ...
The latest discoveries and innovations in emission spectrometry, X-ray fluorescence spectrometry, and atomic absorption spectroscopy are described, and their application as compared to chemical analysis and molecular absorption spectrophotometry is examined. A comparison betweem X-ray, ...
NASA Astrophysics Data System (ADS)
Six hundred and thirty references are cited in this review. The information in the review is divided into 12 major areas: books, reviews, and bibliographies; fundamental studies in flames; developments in instrumentation; measurement techniques and procedure; flame emission spectrometry; flame atomic absorption spectrometry; flame ...
This review focuses on the determination of uranium using spectroanalytical techniques that are aimed at total determination such as flame atomic absorption spectrometry (FAAS), electrothermal atomic absorption spectrometry (ETAAS), inductively coupled plasma optical emission spectrometry ...
Cadmium determination in soils that contain arsenic may be subject to interference. When this problem is not appreciated spurious results may be accepted as correct. Spectrometric methods for the quantitative determination of cadmium in the presence of arsenic were compared. Data are given for each method to demonstrate the problem of arsenic interference. Cadmium ...
In order to compare and evaluate the atomization process occurring in several types of graphite furnaces for atomic absorption spectrometry, the authors estimated temporal variations in the gas temperature by using a two-line method under the assumption of a Bolzmann distribution. The atomization furnaces employed were a graphite tube, ...
A microwave dissolution method with aqua-regia for the determination of metals in sediments and soils is described. A series of elements in solution was subsequently measured by flame or furnace atomic absorption spectrometry or by ICP. Calibration of the...
Absorption of aroma compounds in plastic packaging materials may affect the taste of the packaged food and it may also change the quality of the packaging material. A method to determine the aroma compound absorption in polymers by accelerator mass spectrometry (AMS) is being developed at the Lund Pelletron AMS facility. The high ...
Consideration is given to the influence of flame temperature on the emission signal in atomic emission flame spectrometry and on the absorption signal in atomic absorption flame spectrometry. It is concluded that, if the discussion of the influence of the...
... element. GFAAS = Graphite furnace atomic absorption spectrometry; HGAAS = Hydride generation atomic absorption spectrometry; CVAAS ...
Center for Food Safety and Applied Nutrition (CFSAN)
Jul 15, 2005 ... absorption spectrometry for mercury; (3) hydride generation-atomic absorption spectrometry for antimony and selenium; (4) coulometric ...
Jan 22, 2011 ... Title: Differential laser absorption spectrometry for global-scale monitoring of atmospheric carbon dioxide: selection of optimum sounding ...
... absorption spectrometry with the direct mercury analyzer system DMA-80 from MLS GmbH, and atom absorption spectrometry with ... ...
Contents: Flame emission and atomic absorption spectrometry (Derivative flame emission spectrometry, Evaluation of the atomic absorption method for arsenic, Analytical application to standard reference materials); Spectrophotometry and spectrofluorometry ...
... Accession Number : ADA197710. Title : AAS (Atomic Absorption Spectrometry)-- Has it Gone or Where is it Going. Descriptive Note : Technical rept.,. ...
Different sample pre-treatments for seafood products have been compared with determine trace elements (As, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Se and Zn) by flame atomic absorption spectrometry (FAAS) and electrothermal atomic absorption spectrometry (ETAAS). Classic pre-treatments as microwave ...
Cadmium concentrations in human urine are typically at or below the 1 microgL(-1) level, so only a handful of techniques may be appropriate for this application. These include sophisticated methods such as graphite furnace atomic absorption spectrometry and inductively coupled plasma mass spectrometry. While tungsten coil atomic ...
Trace concentrations (ng/mL) of Fe, Cd, Zn, Cu, Ni, Pb, U, and Co have been determined in seawater by stable isotope dilution spark source mass spectrometry. The seawater samples were preconcentrated on the ion exchanger Chelex-100 and the concentrate was evaporated on a graphite or silver electrode. The results are compared with those obtained by graphite ...
