D.G. Graczyk

Argonne National Laboratory

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Yifen Tsai

National Yang Ming Chiao Tung University

A.M. Essling

Argonne National Laboratory

Jennifer L. Steeb

Argonne National Laboratory

D.L. Bowers

Argonne National Laboratory

James W. Taylor

University of Huddersfield

N.M. Levitz

Argonne National Laboratory

Ira Bloom

Argonne National Laboratory

E.A. Huff

Argonne National Laboratory

Nancy Dietz Rago

Argonne National Laboratory

David B. Chamberlain

University of Nevada, Reno

Cooperative Institutions

Argonne National Laboratory

126

Oak Ridge National Laboratory

University of Chicago

Alex's Lemonade Stand Foundation

Laboratoire de Chimie

Office of Scientific and Technical Information

University of Cincinnati

Sandia National Laboratories

Northwestern University

Illinois Institute of Technology

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Chlorine kinetic isotope effects in nucleophilic substitution reactions. Support for the ion pairs mechanism in the reactions of p-methoxybenzyl chloride in 70% aqueous acetone

Journal of the American Chemical Society (1974)

D.G. Graczyk James W. Taylor

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChlorine kinetic isotope effects in nucleophilic substitution reactions. Support for the ion pairs mechanism in the reactions of p-methoxybenzyl chloride in 70% aqueous acetoneDonald G. Graczyk and James W. TaylorCite this: J. Am. Chem. Soc. 1974, 96, 10, 3255–3261Publication Date (Print):May 1, 1974Publication History Published online1 May 2002Published inissue 1 May 1974https://pubs.acs.org/doi/10.1021/ja00817a038https://doi.org/10.1021/ja00817a038research-articleACS PublicationsRequest reuse permissionsArticle Views106Altmetric-Citations9LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Kinetic isotope effect

Substitution reaction

10.1021/ja00817a038

Cite

Citations (11)

A new technique for enhancing helium production in ferritic materials

Journal of Nuclear Materials (1988)

L.R. Greenwood D.G. Graczyk D.W. Kneff

Nuclear transmutation

10.1016/0022-3115(88)90522-3

Cite

Citations (11)

Analytical chemistry of aluminum salt cake

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (1997)

D.G. Graczyk A.M. Essling E.A. Huff F.P. Smith C. T. Snyder

Component phases of Al salt cake or products from processing salt cake, resist dissolution, a key first step in most analysis procedures. In this work (analysis support to a study of conversion of salt cake fines to value-added oxide products), analysis methods were adapted or devised for determining leachable salt, total halides (Cl and F), Al metal, and elemental composition. Leaching of salt cake fines was by ultrasonic agitation with deionized water. The leachate was analyzed for anions by ion chromatography and for cations by ICP-atomic emission spectroscopy. Only chloride could be measured in the anions, and charge balances between cations and chloride were near unity, indicating that all major dissolved species were chloride salts. For total halides, the chloride and fluorides components were first decomposed by KOH fusion, and the dissolved chloride and fluoride were measured by ion chromatography. Al metal in the fines was determined by a hydrogen evolution procedure adapted for submilligram quantities of metallic Al: the Al was reacted with HCl in a closed system containing a measured amount of high-purity He. After reaction, the H/He ratio was measured by mass spectroscopy. Recoveries of Al metal standards (about 30mg) averaged 93%. Comparison of the acid evolution with caustic reaction of the Al metal showed virtually identical results, but reaction was faster in the acid medium. Decomposition of the salt cake with mineral acids left residues that had to be dissolved by fusion with Na carbonate. Better dissolution was obtained by fusing the salt cake with Li tetraborate; the resulting solution could be used for accurate Al assay of salt cake materials by classical 8-hydroxyquinolate gravimetry.

Source

Cite

Citations (8)

Laser microsampling method for determination of retained fission gas in irradiated nuclear fuels. [LMFBR]

D.G. Graczyk Gautam Bandyopadhyay S.M. Gehl James P. Hughes Harvey T. Goodspeed

A small ruby laser adapted to fire through a microscope is used to release fission gases from specific sites on a plane surface of an irradiated fuel specimen. Interaction of the focused laser pulse with the specimen surface results in a conical crater from which sampled material has been vaporized; the crater is surrounded by a heat-affected zone in which intergranular fracture and grain separation allow release of grain-boundary gases. Procedures for measuring the amount of krypton-85 released by laser heating and the volume of material from which the release occurred are presented. The data obtained may be used to obtain local krypton fission-gas concentrations and the intragranular/intergranular distribution.

Krypton

Corium

10.2172/5513233

Cite

Citations (4)

Preparation of waste oil for analysis to determine hazardous metals

A.M. Essling David R. Huff E.A. Huff I.M. Fox D.G. Graczyk

Two methods for preparing waste-oil samples to permit measurement of their metals content were evaluated. For this evaluation, metals-in-oil standard reference materials were prepared by each method and the resulting solutions were analyzed for 20 metals, including those (As, Ba, Cd, Cr, Pb, Hg, Se, and Ag) regulated as hazardous under the Resource Conservation and Recovery Act. One preparation method involved combustion of the waste oil under oxygen at 25 atm pressure, as described in the American Society for Testing and Materials test method E926-88. As we applied it, this method gave recoveries well under 90% for most of the metals that we examined and, hence, proved unsatisfactory for routine application to waste-oil analysis. With the other method, nitric acid decomposition in a sealed vessel heated with microwave energy (analogous to US Environmental Protection Agency Method 3051), recoveries of all 20 metal contaminants were within 90 to 110% of the certified values. This microwave digestion procedure was also more efficient since it allowed six samples to be prepared together, whereas the oxygen combustion approach allowed processing of only one sample at a time.

Waste oil

Nitric acid

10.2172/100041

Cite

Citations (0)

Report on the Shearing, Dissolution and Analysis of GRIP-II Rod 79-453 (validation rod). Light Water Breeder Reactor Proof-of-Breeding Analytical Support Project

N.M. Levitz John E. Parks I.O. Winsch Robert J. Meyer D.G. Graczyk

This report covers the processing and analysis of the fuel-bearing section (M-5138) of an irradiated experimental Light Water Breeder Reactor fuel rod, GRIP-II rod No. 79-453; this section has been designated the Validation Rod. Process steps included precision shearing of the rod into eight comminuted segments, dissolution of the segments, and chemical and radiometric analyses of the resulting solutions. The shearing and dissolution were carried out fully remotely in an existing pilot-scale facility installed in a shielded cell. Data are provided on physical parameters of the rod section and segments, uranium assays and isotopic abundances, and selected fission products. An error analysis of the individual measurements and analyses is included.

Shearing (physics)

Light-water reactor

Source

Cite

Citations (0)

Determination of cadmium in Lake Michigan by mass spectrometric isotope dilution analysis or atomic absorption spectrometry following electrodeposition

Analytical Chemistry (1982)

Jean L. Muhlbaier C. M. Stevens D.G. Graczyk Thomas Tisue

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of cadmium in Lake Michigan by mass spectrometric isotope dilution analysis or atomic absorption spectrometry following electrodepositionJean. Muhlbaier, Charles. Stevens, Donald. Graczyk, and Thomas. TisueCite this: Anal. Chem. 1982, 54, 3, 496–499Publication Date (Print):March 1, 1982Publication History Published online1 May 2002Published inissue 1 March 1982https://pubs.acs.org/doi/10.1021/ac00240a033https://doi.org/10.1021/ac00240a033research-articleACS PublicationsRequest reuse permissionsArticle Views62Altmetric-Citations14LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts

Isotope dilution

Altmetrics

10.1021/ac00240a033

Cite

Citations (16)

Potential Dependence of Pt and Co Dissolution from Platinum-Cobalt Alloy PEFC Catalysts Using Time-Resolved Measurements

Journal of The Electrochemical Society (2018)

Rajesh Ahluwalia Dionissios D. Papadias Nancy N. Kariuki Jui-Kun Peng Xiaoping Wang

An electrochemical flow cell system with catalyst-ionomer ink deposited on glassy carbon is used to investigate the aqueous stability of commercial PtCo alloys under cyclic potentials. An on-line inductively coupled plasma-mass spectrometer, capable of real-time measurements, is used to resolve the anodic and cathodic dissolution of Pt and Co during square-wave and triangle-wave potential cycles. We observe Co dissolution at all potentials, distinct peaks in anodic and cathodic Pt dissolution rates above 0.9 V, and potential-dependent Pt and Co dissolution rates. The amount of Pt that dissolves cathodically is smaller than the amount that dissolves anodically if the upper potential limit (UPL) is lower than 0.9 V. At the highest UPL investigated, 1.0 V, the cathodic dissolution greatly exceeds the anodic dissolution. A non-ideal solid solution model indicates that the anodic dissolution can be associated with the electrochemical oxidation of Pt and PtOH to Pt2+, and the cathodic dissolution to electrochemical reduction of a higher Pt oxide, PtOx (x > 1), to Pt2+. Pt also dissolves oxidatively during the cathodic scans but in smaller amounts than due to the reductive dissolution of PtOx. The relative amounts Pt dissolving oxidatively as Pt and PtOH depend on the potential cycle and UPL.

Glassy carbon

Rotating disk electrode

10.1149/2.0031806jes

Cite

Citations (80)

Determination of actinide and fission-product isotopes in very-high-burnup spent nuclear fuel

Journal of Radioanalytical and Nuclear Chemistry (2008)

Vivian Sullivan D.L. Bowers Mark A. Clark D.G. Graczyk Yifen Tsai

Burnup

Nuclear fission product

Plutonium-240

Nuclear data

10.1007/s10967-008-0709-4

Cite

Citations (7)

Innovative methods for inorganic sample preparation

A.M. Essling E.A. Huff D.G. Graczyk

Procedures and guidelines are given for the dissolution of a variety of selected materials using fusion, microwave, and Parr bomb techniques. These materials include germanium glass, corium-concrete mixtures, and zeolites. Emphasis is placed on sample-preparation approaches that produce a single master solution suitable for complete multielement characterization of the sample. In addition, data are presented on the soil microwave digestion method approved by the Environmental Protection Agency (EPA). Advantages and disadvantages of each sample-preparation technique are summarized.

Sample Preparation

Sample (material)

Characterization

10.2172/10171108

Cite

Citations (1)