Index Catalog // ScholarsArchive@OSU

Design, construction, and characterization of a six-electrode, direct current, variable length plasma source for atomic emmission spectroscopy

Creator:: Shields, James Phillip
Abstract:: The variable length, six-electrode plasma source for atomic emission spectroscopy described here is operated from three compact, simple, and inexpensive direct current power supplies. The vertical arcs formed between the three electrode pairs completely entrain the sample and are typically operated at 40 V and 20 A. Three concentric quartz...
Resource Type:: Dissertation
Full Text:: /- Edward H. Piepmeier The variable length, six-electrode plasma source for atomic emission spectroscopy

Selective detection for gas chromatography by ultraviolet spectrometry

Creator:: Van Engelen, Debra L.
Abstract:: Spectrometric detection systems for gas chromatography (GC) based on gas phase ultraviolet absorbance and fluorescence measurements have been developed and evaluated in this research. Polynuclear aromatic compounds (PNAs) are selectively detected by these systems. Limits of detection for PNAs range from 4 ng to 90 ng for absorbance determinations, and...
Resource Type:: Dissertation
Full Text:: Spectrometry Abstract approved: Redacted for Privacy Edward H. Piepmeier Spectrometric detection systems for

An atmospheric pressure glow discharge detector for capillary column gas chromatography

Creator:: Baur, Susanna S.
Abstract:: The change in the oscillation frequency in the current of an atmospheric helium glow discharge is a sensitive detector for gas chromatography. The response of the detector is in the femtomole and picomole range for nonane and decane. The effluent of a capillary column is directed into a glow discharge...
Resource Type:: Masters Thesis
Full Text:: Discharge Detector for Capillary Column Gas Chromatography. Abstract approved: Edward H. Piepmeier The

Use of a tungsten filament atomizer in atomic absorption spectrometry

Creator:: Reid, Richard Donald
Abstract:: A nonflame method for atomic absorption spectroscopy is described. A helical tungsten filament from a commercially available 6-V, 4-A light bulb, heated to :incandescence in an argon atmosphere is used to atomize 2-μl aqueous samples for metals analyses. Studies of two hollow cathode lamp tungsten filament orientations, a modulated light...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Redacted for privacy Edward H. Piepmei'er A nonflame method for atomic absorption

A three-phase argon plasma arc for analytical emission spectroscopy

Creator:: Mattoon, Terence Richard
Abstract:: A new three-phase argon plasma arc was developed for analytical emission spectroscopy. The power supplied to the plasma arc utilized a simple circuit with three-phase as line voltage stepped down via a transformer to 104Vrms. A three concentric quartz tubing assembly was determined to be the optimum configuration for supplying...
Resource Type:: Masters Thesis
Full Text:: SPECTROSCOPY Abstract approved: Redacted for Privacy Edward H. Piepmeier A new three-phase argon plasma arc

Spectroscopic investigation of atomic and molecular species formed in a laser microprobe plasma using a wavelenth calibrated tunable dye laser

Creator:: Beenen, Gerhard Joseph
Abstract:: The temporal and spatial characteristics of a laser microprobe plume were investigated using the spectroscopic methods of emission, absorption and fluorescence. The plume was produced by rapid vaporization of a small quantity (1 μg) of a solid sample using a focussed pulsed dye laser (110 MW/cm²). For absorption and fluorescence...
Resource Type:: Dissertation

Fundamental studies of a gas-jet enhanced sputtering system and its applications

Creator:: Kim, Hyo-jin
Abstract:: The use of gas jets in a sputtering cell makes this direct sampling method practical for atomic absorption and mass spectrometry determinations. With a commercial six-jet sputtering source, the Atomsource (Analyte Corp., Grants Pass, Oregon), that directly atomizes solid samples for conventional atomic absorption spectrophotometers, the sample loss rate for...
Resource Type:: Dissertation
Full Text:: Sputtering System and its Applications Abstract approved: Redacted for Privacy Edward H. Piepmeier The

Sample entraining multi-electrode plasma sources for atomic emission spectroscopy

Creator:: Lee, Gae Ho
Abstract:: Plasma sources with multiple electrodes have been developed and characterized in this research for atomic emission spectroscopy. Multi-electrode plasma sources use electrodes to shape the plasma in order to continuously entrain a sample stream in the center of hot plasma, in a manner similar to an inductively coupled plasma (ICP)...
Resource Type:: Dissertation
Full Text:: my family for their never failing love and support. CONTRIBUTION OF AUTHORS Gae H. Lee Edward H

Nitrogen isotope abundance ratio determination using molecular emission spectrometry

Creator:: Eierman, Robert J.
Resource Type:: Dissertation
Full Text:: Determination Using Molecular Emission Spectrometry Abstract approved: Redacted for privacy Edward H

Studies of glow discharge oscillations and jet-enhanced cathodic sputtering

Creator:: Zhu, Zhubiao
Abstract:: Three aspects of glow discharges have been studied: glow discharge oscillations, sputtering, and coupling between cathode and anode regions the two most important regions in a glow discharge. Cathode and anode processes are tightly coupled by electron and ion coupling effects. Both electron and ion coupling effects were observed by...
Resource Type:: Dissertation
Full Text:: Cathodic Sputtering Abstract approved: Edward H. Piepmeier Three aspects of glow discharges have been

ScholarsArchive@OSU

Design, construction, and characterization of a six-electrode, direct current, variable length plasma source for atomic emmission spectroscopy

Selective detection for gas chromatography by ultraviolet spectrometry

An atmospheric pressure glow discharge detector for capillary column gas chromatography

Use of a tungsten filament atomizer in atomic absorption spectrometry

A three-phase argon plasma arc for analytical emission spectroscopy

Spectroscopic investigation of atomic and molecular species formed in a laser microprobe plasma using a wavelenth calibrated tunable dye laser

Fundamental studies of a gas-jet enhanced sputtering system and its applications

Sample entraining multi-electrode plasma sources for atomic emission spectroscopy

Nitrogen isotope abundance ratio determination using molecular emission spectrometry

Studies of glow discharge oscillations and jet-enhanced cathodic sputtering

Limit your search

Academic Affiliation

Advisor

Commencement Year

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search