Inductively coupled plasma atomic emission spectroscopy applied to the analysis of wear metals in lubricating oil and related studies.

Persistent Link:
http://hdl.handle.net/10150/185307
Title:
Inductively coupled plasma atomic emission spectroscopy applied to the analysis of wear metals in lubricating oil and related studies.
Author:
Freelin, Julie Michelle.
Issue Date:
1990
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The accurate determination of wear metals in lubricating fluids is of great potential value in the proper maintainence of all types of machinery. Savings of both time and money have been reported in the military and civilian sectors following the implementation of routine wear metal screening in lubricating oils. Current methods are known to discriminate against metals present in the form of particulates. The first part of this dissertation focusses on the direct determination of wear metals in lubricating oils by atomic emission spectroscopy utilizing an inverted inductively coupled plasma as a source. Data are presented which show the effects of power and viewing position on the signal intensity of a variety of sized iron particulate samples in lubricating oil. The second part of this dissertation describes the characterization of a relatively new spectroscopic source--the dual inductively coupled plasma (DICP). The DICP increases the residence time of the analyte in the source by extending the physical length of the plasma discharge and providing two energy deposition regions. Emission intensity, electron density, ion-to-atom intensity ratios, and calculated temperatures are used to compare the DICP with standard inductively coupled plasmas recorded in the literature.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Mechanical wear; Metals -- Testing; Atomic emission spectroscopy
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Chemistry; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Denton, M.B.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleInductively coupled plasma atomic emission spectroscopy applied to the analysis of wear metals in lubricating oil and related studies.en_US
dc.creatorFreelin, Julie Michelle.en_US
dc.contributor.authorFreelin, Julie Michelle.en_US
dc.date.issued1990en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe accurate determination of wear metals in lubricating fluids is of great potential value in the proper maintainence of all types of machinery. Savings of both time and money have been reported in the military and civilian sectors following the implementation of routine wear metal screening in lubricating oils. Current methods are known to discriminate against metals present in the form of particulates. The first part of this dissertation focusses on the direct determination of wear metals in lubricating oils by atomic emission spectroscopy utilizing an inverted inductively coupled plasma as a source. Data are presented which show the effects of power and viewing position on the signal intensity of a variety of sized iron particulate samples in lubricating oil. The second part of this dissertation describes the characterization of a relatively new spectroscopic source--the dual inductively coupled plasma (DICP). The DICP increases the residence time of the analyte in the source by extending the physical length of the plasma discharge and providing two energy deposition regions. Emission intensity, electron density, ion-to-atom intensity ratios, and calculated temperatures are used to compare the DICP with standard inductively coupled plasmas recorded in the literature.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectMechanical wearen_US
dc.subjectMetals -- Testingen_US
dc.subjectAtomic emission spectroscopyen_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineChemistryen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorDenton, M.B.en_US
dc.contributor.committeememberBurke, M.F.en_US
dc.contributor.committeememberFernando, Q.en_US
dc.contributor.committeememberSalzman, W.R.en_US
dc.contributor.committeememberVemulapalli, G.K.en_US
dc.identifier.proquest9114055en_US
dc.identifier.oclc706489132en_US
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