Show simple item record

dc.contributor.advisorKenny, Christopher L.en_US
dc.contributor.authorHaven, Mary Clareen_US
dc.date.accessioned2017-02-09T15:00:59Z
dc.date.available2017-02-09T15:00:59Z
dc.date.issued1964en_US
dc.identifier.urihttp://hdl.handle.net/10504/109432
dc.description.abstractAlthough zinc in biological samples has been determined previously by neutron activation analysis, the methods have been time consuming and involve post irradiation separations with remote control handling. Banks, et al, has developed a procedure involving 28 hours of reactor time and remote control manipulation of a dithizone extraction. Dithizone is used on a cellulose acetate column for the method devised by Pierce, et al. After elution of zinc from the column, quinaldic acid is used to precipitate the zinc for counting. Another procedure for determining zinc is described by Bowen, and he uses various precipitating agents to remove the interfering ions and precipitate the zinc. Other methods for the determination of zinc by neutron activation analysis are given by Hicks. These involve precipitation technics or precipitation in conjunction with ion exchange separations. All procedures must be carried out after irradiation and the required precautionary protective measures must be provided for the chemists. | However, the sensitivity attained by measuring the Zn69m nuclide after the sample has been irradiated at least twelve hours is little better than that achieved by conventional colorimetric methods. For this reason the method developed in this research does not measure the activity of Zn69m, but rather measures the activity of Cu64 or Cu66. Zinc dithizonate is isolated in an organic phase, excess dithizone removed and copper is exchanged for zinc. The copper dithizonate is then irradiated and counted. The concentration of copper will be directly proportional to the initial concentration of zinc.en_US
dc.language.isoen_USen_US
dc.publisherCreighton Universityen_US
dc.rightsA non-exclusive distribution right is granted to Creighton University and to ProQuest following the publishing model selected above.en_US
dc.titleNeutron Activation Analysis of Zinc in Biological Samplesen_US
dc.typeThesis
dc.publisher.locationOmaha, Nebraskaen_US
dc.description.noteProQuest Traditional Publishing Optionen_US
dc.contributor.cuauthorHaven, Mary Clareen_US
dc.degree.levelMS (Master of Science)en_US
dc.degree.disciplineChemistry (graduate program)en_US
dc.degree.nameM.S. in Chemistryen_US
dc.degree.grantorGraduate Schoolen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record