Index Catalog // ScholarsArchive@OSU

Development of automated flow injection apparatus and a novel flow cell for chemi- and bioluminescence determinations

Creator:: Gander, Stuart C.
Abstract:: A practical and versatile instrument has been developed both to optimize the chemistry of bio- and chemiluminescence reactions and to measure ultra-trace quantities of associated analytes. The instrument consists of a pneumatic flow injection system linked to a detection cell and a signal processing and readout system. The disk-like cell...
Resource Type:: Masters Thesis
Full Text:: novel flow cell for chemi- and bioluminescence determinations AN ABSTRACT OF THE THESIS OF Stuart C

Part I : development and application of an arsenic speciation technique using ion-exchange solid phase extraction coupled with GFAAS ; Part II : investigation of zinc amalgam as a reductant

Creator:: Bos, Mark C.
Abstract:: Two related techniques, based upon ion-exchange solid phase extraction, have been developed for the determination of arsenic speciation. The inorganic arsenic species arsenite (As(III)) and arsenate (As(V)) are separated by anion-exchange and detected with graphite furnace atomic absorption spectrophotometry (GFAAS) with a nickel matrix modifier. The first separation technique, which...
Resource Type:: Masters Thesis
Full Text:: amalgam as a reductant AN ABSTRACT OF THE THESIS OF Mark C. Bos for the degree of Master of Science in

A reaction rate determination of aluminum with a microcomputer-based spectrofluorometer

Creator:: Campi, Gregory Louis
Abstract:: The development and optimization of a fluorometric reaction rate method for the determination of aluminum is described. Modifications to existing instrumentation permit automatic monitoring and reporting of measurement conditions. Automatic correction of measured analytical signals is provided if monitored parameters deviate from optimum values. A computer controlled standard addition procedure...
Resource Type:: Masters Thesis
Full Text:: PC boards designed and manufactured in our laboratory (86-88). C. B. Elliott actively participated

The determination of gasoline and alkyl benzenes in aqueous solution and the development of a remote reaction chamber for fiber optic remote sensing

Creator:: Waddle, Robert D.
Abstract:: The development and optimization of a single-phase derivatization technique for small ring aromatics in water are presented. Also described are the design, optimization and application of a remote reaction chamber for fiber optic sensing. Aqueous solutions of the major aromatic compounds in gasoline are derivatized to o-nitrosophenol-Cu complexes with a...
Resource Type:: Masters Thesis
Full Text:: heating to 370-430° C in a fractioning tower. The distillation separates approximately 6 fractions; light

Microcomputer controlled chemical and radiochemical separations and analysis

Creator:: Bennett, Casey Wayne
Abstract:: An automated radiochemical flow analysis (ARFA) system was developed which integrates chemical and radiochemical techniques into one system through the use of a microcomputer. The operator, through the microcomputer, controls valves and pumps to transfer sample and reagent solutions to counting loops, ion exchange columns and holdup reservoirs. A Ge(Li)...
Resource Type:: Dissertation
Full Text:: Electrodes-Multiplexer-ADC 213 Appendix P -- 32 Bit Binary Counter 218 Appendix C -- RS232 - 20 mA

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

Creator:: Al-Mutawah, Jameela Isa
Resource Type:: Masters Thesis
Full Text:: presented on August 5. 1994 APPROVED: Professortbf Chemistry in c arge of major Cha an of D p

The development and characterization of miniature spectrometers for measuring the redox status of environmental samples

Creator:: Cantrell, Kevin
Abstract:: A spectrometer, here denoted a Simple, Low-power, Inexpensive. Microcontroller-based or SLIM spectrometer. was developed that exploits the small size and low cost of solid-state electronic devices. This approach results in customizable spectrometers that are considerably less expensive and smaller than traditional instrumentation. The performance of the SLIM spectrometer was evaluated...
Resource Type:: Dissertation
Full Text:: ................................... 139 SPEAR VB communication code ............................................... 143 C Supplemental

Development of trace enrichment techniques for trace metals in natural waters using high pressure liquid chromatography

Creator:: Ambrose, Arthur Sigurd
Abstract:: An on-line trace enrichment (TE) system, based on high pressure liquid chromatogroaphy (HPLC) and flame atomic absorption (AA), has been developed for trace metal analysis. The sample is pumped through a column filled with a cation exchange resin which traps metal ions. The ions are subsequently stripped from the column...
Resource Type:: Dissertation
Full Text:: APPENDIX A Solvent/valve module 159 APPENDIX B Variable address I/O board 163 APPENDIX C Computer program

Characterization and applications of polyphenol chemiluminescence reactions and flow cell instrumentation

Creator:: Miller, Robert J. (Robert James), 1933-
Resource Type:: Dissertation

A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation

Creator:: Dewald, Lamar Robert
Abstract:: An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of voltammetric analysis to be implemented and multiple scans to be run unattended. A three operational amplifier potentiostat is used to control the cell voltage and...
Resource Type:: Dissertation
Full Text:: little change in metal concentrations for samples stored at 4 C for 90 days. Adsorption of metals onto

ScholarsArchive@OSU

Development of automated flow injection apparatus and a novel flow cell for chemi- and bioluminescence determinations

Part I : development and application of an arsenic speciation technique using ion-exchange solid phase extraction coupled with GFAAS ; Part II : investigation of zinc amalgam as a reductant

A reaction rate determination of aluminum with a microcomputer-based spectrofluorometer

The determination of gasoline and alkyl benzenes in aqueous solution and the development of a remote reaction chamber for fiber optic remote sensing

Microcomputer controlled chemical and radiochemical separations and analysis

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

The development and characterization of miniature spectrometers for measuring the redox status of environmental samples

Development of trace enrichment techniques for trace metals in natural waters using high pressure liquid chromatography

Characterization and applications of polyphenol chemiluminescence reactions and flow cell instrumentation

A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation

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