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Wednesday, July 15, 2020 | History

2 edition of On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases found in the catalog.

On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases

D. C. Girvin

On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases

by D. C. Girvin

  • 322 Want to read
  • 33 Currently reading

Published by Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Available to the public through the National Technical Information Service in Cincinnati, Ohio, Springfield, Va .
Written in English

    Subjects:
  • Mercury -- Analysis.,
  • Atomic absorption spectroscopy.,
  • Air -- Pollution.

  • Edition Notes

    Statementby D.C. Girvin and J.P. Fox.
    SeriesInteragency energy/environment R&D program report -- EPA-600/7-80-130., Research reporting series -- EPA-600/7-80-130.
    ContributionsFox, J. P., Industrial Environmental Research Laboratory (Cincinnati, Ohio). Program Operations Office., Industrial Environmental Research Laboratory (Cincinnati, Ohio), Lawrence Berkeley Laboratory. Energy and Environment Division.
    The Physical Object
    Paginationxiv, 96 p. :
    Number of Pages96
    ID Numbers
    Open LibraryOL17541792M

    Atomic Absorption Spectroscopy (AA) OF Whether your single-element inorganic analysis application requires flame furnace or graphite furnace atomic absorption (AA), we offer state-of-the-art, high-performance instrumentation, and support you with more than 50 years of experience as the industry leader in atomic absorption spectroscopy. D. C Girvin has written: 'On-line Zeeman atomic absorption spectroscopy for mecury analysis in oil shale gases' -- subject(s): Mercury, Atomic absorption spectroscopy, Air, Analysis, Pollution.

    United States Department of Agriculture Food Safety and Inspection Service, Office of Public Health Science CLG-MERC Page 6 of 10 Title: Determination of Mercury by Atomic Absorption Spectroscopy Revision: 01 Replaces: CLG -MERC Effective: 05/27/ h. Swirl to mix the contents thoroughly and pipet 10 mL of the contents from each. METHODS FOR ANALYSIS OF METALS BY ATOMIC ABSORPTION 27 accurate and reproducible to ± mg per 1 for concentrations of cal­ cium less than 20 mg per 1 and to ± ± mg per 1 for concentra­ tions of calcium from 20 to mg per 1. When excessive dilution is required, the accuracy and reproducibility are by:

    Douglas M. Skie Quality Assurance in Sampling arid Analysis of Oil Shale Retorting Operations. R.N. Fleistand, L.L. Morriss and R.A. Atwood Use of Zeeman Atomic Absorption Spectroscopy for the Measurement of Mercury in Oil Shale Gases D.C. Girvin, T. Hadeishi and J.P. Fox A Sampling and Analysis Procedure for Gaseous Sulfur Compounds. This test covers the determination of total mercury in natural gas at concentrations down to 1 ng/m 3. It includes separate procedures for both sampling and atomic absorption spectrophotometric determination of mercury. The procedure detects both inorganic and organic forms of mercury.


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On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases by D. C. Girvin Download PDF EPUB FB2

SECTION 2 CONCLUSIONS A new Zeeman atomic absorption (ZAA) spectrometer was designed and built to make continuous on-line measurements of mercury in the off-gas from oil shale.

On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases, Volume 1 D. Girvin, J. Fox, Industrial Environmental Research Laboratory (Cincinnati, Ohio), Lawrence Berkeley Laboratory. On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases.

Cincinnati, Ohio: Industrial Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Springfield, Va.: Available to the public through the National Technical Information Service, (OCoLC) author(s): girvln, d.c.

on-line zeeman atomic absorption spectroscopy for mercury analysis in oil shale : D.C. Girvin, J.P. Fox. On-line Zeeman atomic absorption spectroscopy for mercury analysis in oil shale gases / By D. Girvin, J. Fox, Lawrence Berkeley Laboratory. Energy and Environment Division., Ohio) Industrial Environmental Research Laboratory (Cincinnati and Ohio).

Atomic absorption spectrometry is the measurement of the absorption of optical radiation by atoms in the gaseous state. Usually only absorptions involving the ground state, known as resonance lines.

Conversely, if a weak field is applied to Theory of Zeeman atomic absorption spectrometry the atomizer, the split a-components of the absorbing vapour will absorb the unshifted analyte-source line to an equal extent.

(f) The optical system displays no preference to either polarization of by: Dependence of the differential signal 5 on the magnetic field strength (direct Zeeman effect and longitudinal magnetic field): (a,a') is a signal Sn for a mercury sample with normal isotopic composition; (b,b') is a signal Sc for a mercury sample enriched with ^Hg; and (c) is a signal S, = S^-S^.

(Calculation. The accuracy of the method is 20% [52] Real-time GEM measurements in air were carried out using a portable Lumex (+) analyzer. This device is based on Zeeman Atomic Absorption Spectrometry using High Frequency Modulation of Light Polarization (ZAAS-HFM; [51]).

Instrumentation Atomic absorption spectrophotometric equipment capable of continuum background correction is used in the analysis. A mercury electodeless discharge lamp (EDL) is used as a resonance source.

With the EDL, background correction is difficult to achieve; therefore, a trap of concentrated sulfuric acid is used. (Refer to section Gc.). Zinc is determined by atomic absorption spectrometry by direct aspiration of the sample into an air-acetylene flame. The procedure may be automated by the addition of a sampler and either a strip-chart recorder or a printer or both.

Interferences Magnesium at concentrations greater than mg/L interferes unless other cations File Size: KB. Gaseous Hg emissions were measured during the processing of a large modified in-situ oil shale retort (4× m3) in Colorado. A continuous, on-line, g Cited by: 4. This test method can be used for total mercury determination in natural and processed liquid and oil products (gasoline, naphtha, etc.).

This test method may be applied to samples containing between ng/mL to ng/mL of mercury. The results may be converted to mass basis. Mercury emissions from a modified in-situ oil shale retort.

on-line, gas monitor based upon the principal of Zeeman atomic absorption spectroscopy was the primary analytical method. An atomic absorption spectrometry for the quantification of zink (Zn) and mercury analyzer for the quantification of mercury (Hg) levels in cream cosmetic were developed and validated.

The method was validated for linearity and range, precision, accuracy, limit Cited by: 3. Barium is determined by atomic absorption spectrometry. Sodium chloride is added to control ionization of barium in the flame. Interferences The use of a nitrous oxide-acetylene flame vir-tually eliminates chemical interferences in the determination of barium.

However, barium File Size: KB. Spectrochemical Analysis by Atomic Absorption and Emission provides this knowledge, by describing both the theory of atomic spectroscopy and all the major atomic spectrometric techniques (AAS, Flame-AES, Plasma AES, AFS, and ICP-MS), including basic concepts, instrumentation and by: Atomic absorption spectroscopy (Chemical analysis) Hardcover – January 1, by Morris Slavin (Author) › Visit Amazon's Morris Slavin Page.

Find all the books, read about the author, and more. See search results for this author. Are you an author. Author: Morris Slavin. Using an RA + Zeeman atomic absorption spectrometer, the concentration of mercury was measured in the air above objects of interest.

The measurements mainly made from driving a car equipped with a GPS receiver have allowed the assignment of Hg concentration to a particular place to provide a digitised pollution database in geographic Author: Egils Bogans, Janis Skudra, Anda Svagere, Zanda Gavare.

A Flame-Atomic Absorption Spectrophotometry (AAS-flame) for the quantification of cadmium (Cd) and lead (Pb) and mercury analyzer for quantitative analysis of mercury (Hg) in red chili pepper (Capsicum annum L.) were developed and method was validated for some parameters, namely linearity and range, precision, accuracy, Limit of Detection (LoD) and Limit of Quantification (LoQ.

This practice is known as atomic absorption spectroscopy (AAS). AAS was first deployed back in by Gustav Kirschoff and Robert Bunsen to detect the presence of certain atoms in flames and gases. Since then, the modern approach to AAS has been revolutionised, most noticeably by A.

C. Walsh and C. T. J. Alkemade in the s.A Guide to Spectroscopy for Used Oil Analysis | 2 Techniques most commonly employed for oil analysis ARC/SPARK/ROTATING DISK ELECTRODE SPECTROSCOPY (RDE) A typical method used for the excitation source in modern spectrometers is an electric discharge.

The source is designed to impart the energy generated in an arc or spark to the sample.The thoroughly revised new edition of this best-seller, presents the wide use of AAS in numerous fields of application.

The comparison between the different AAS techniques enables the reader to find the best solution for his analytical s Bernhard Welz and Michael Sperling have succeeded in finding a balance between theoretical fundamentals and practical applications.