... Accession Number : ADA278263. Title : Ultraviolet Absorption Spectrometry (UVAS) and Liquid Atomic Emission Spectrometry (LAES. ...

...Related Materials by Combustion Infrared-Absorption Spectrometry, IBR approved for § 98...low carbon content. Part 1: Infrared absorption method after combustion in an electric...low carbon content. Part 3: Infrared absorption method after combustion in an...

isotopic species. The enriched water samples used in bio-medical studies yield 2 HOH extinction ratios-up for measuring the stable isotopes in water by means of laser spectrometry (LS). It is partly based on previously for measuring stable isotopes in water is based on direct absorption laser spectrometry (LS). For ...

Some spectral effects in atomic absorption spectrometry are reported for magnesium--terbium and osmium--chromium interference. (JFP)

...the sample is analyzed by atomic absorption spectrometry using an air-acetylene...the 283.3 or 217.0 nm lead absorption line, and the optimum instrumental...sensitivities for a 1 percent change in absorption (0.0044 absorbance...

absorption spectrometry. Its design was based on that of the ATMOS ... the composition of the Earth's atmosphere by solar occultation spectrometry. The ...

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 ...

The increased awareness of the deleterious effects of polynuclear aromatic (PNA) compounds emphasizes the need for instruments that are capable of monitoring these compounds and also are suitable for use in health protection programs. Second-derivative uv-absorption spectrometry with least-squares spectral analysis shows promise as a method for analyzing ...

The increased awareness of the deleterious effects of polynuclear aromatic (PNA) compounds emphasizes the need for instruments that are capable of monitoring these compounds and also are suitable for use in health protection programs. Second-derivative UV-absorption spectrometry with least-squares spectral analysis shows promise as a method for analyzing ...

Reviews background of atomic absorption spectrometry techniques. Discusses problems encountered and precautions to be taken in determining trace elements in the parts-per-billion concentration range and below. Concentrates on determining chromium in biological samples by graphite furnace atomic absorption. ...

Flame emission determination of Sr in seawater was studied using an ordinary atomic absorption apparatus. The analytical line 4607 A was used with a background correction at 4616 A. The ionization was negligible in an air acetylene flame with seawater, and the interference of H/sub 2/SO/sub 4/ was eliminated using the higher part of the flame. Sr ...

A solvent extraction procedure has been developed for the determination of tellurium in all types of steel. After dissolution, the sample is extracted with trioctylphosphine oxide-methyl isobutyl ketone. The extract is then nebulized directly into the atomic absorption burner flame. This method requires 25 minutes and can determine as low as 2 parts per ...

An atomic absorption spectroscopy (AAS) method for determining mercury levels in liquid samples to the parts per billion range was determined. The method is attractive because of the ease of application and the accuracy and precision of the results. Liquid samples may be analyzed that are as small as one milliliter. 6 references, 1 figure.

The two methods presented for the determination of traces of gold in geologic materials are the cyanide atomic-absorption method and the fire-assay atomic-absorption method. In the cyanide method gold is leached with a sodium-cyanide solution. The monovalent gold is then oxidized to the trivalent state and concentrated by extracting into methyl isobutyl ...

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 ...

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.,. ...