Index Catalog // ScholarsArchive@OSU

Design and application of a microcomputer automated multielement flame atomic fluorescence instrument

Creator:: Neyzari, Shahrokh Ghaffari
Abstract:: An automated multielement flame atomic fluorescence (AF) spectrometer based on microcomputer control was constructed to determine four elements simultaneously. The instrument employs a multiple exit slit monochromator where the light from various exit slits is directed to a single detector with a mirrored funnel. Each element is excited to fluoresce...
Resource Type:: Dissertation
Full Text:: , Dr. Joseph W. Nibler, and Dr. Max Deinzer, who served on my doctoral advisory committee, and their

Evaluation of sampling/preconcentration techniques and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water

Creator:: Prayoonpokarach, Sanchai
Abstract:: A direct purge technique was developed for the determination of chloroform or trichloroethylene (TCE) in water samples. These volatile organic solvents are transferred from the water sample to a reagent where they are trapped and react to form products (Fujiwara chemistry) that are monitored fluorometrically. Chloroform in a water sample...
Resource Type:: Masters Thesis
Full Text:: reagent was unstable and lost its reactivity within a day (18). Johnson (19) was the first to test the

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:: (pc! as the reaction pro- ceeds. From: Seitz, W. R., "Chemiluminescence and Bio- luminescence Analysis

The determination of free chloride utilizing chemiluminescence with continuous flow and flow injection analysis

Creator:: Glaser, Soren J.
Resource Type:: Masters Thesis
Full Text:: Company Inc.: New York, New York, 1986; pp 214-250. 7) Jolley, R. L.; Lyman, C. W.; Johnson, D. J.; et al

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:: , 1993. 3) Cullen, W. R.; Reimer, K. J. Chem. Rev., 1989, 89, 713-764. 4) Ferguson, J. F.; Gavis, J

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

Creator:: Al-Mutawah, Jameela Isa
Resource Type:: Masters Thesis
Full Text:: II k m o - I IN W ; CH3C1420H CH3C-H 4 CH3C -OH Ethanol Acetaldehyde Acetic Acid The carbon

Studies of chemical speciation of trace metals in natural waters using an on-line electrochemical cell and ion exchange system

Creator:: Sule, Pushkar Anant
Resource Type:: Masters Thesis
Full Text:: , 219-296. 2. Sunda, W. G.; Guillard, R. R. J. Mar. Res. 1976, 34, 511-519. 3. Allen, H. E.; Hall, R

Development and evaluation of sampling techniques, instrumentation, and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water with a portable fluorometer

Creator:: Prayoonpokarach, Sanchai
Abstract:: A novel, portable, filter fluorometer was developed for the determination of chloroform and TCE at environmentally-relevant levels when coupled with improved sampling techniques and reagents. Reagents selective for the TCE or chloroform convert these toxic species into fluorescent species that can be monitored. The fluorometer is based on LED excitation...
Resource Type:: Dissertation
Full Text:: Oregon State University (OSU). At OSU, Johnson (27) in 1990 was the first to study reagents based on 35

Studies of ammonia gas transport and fluorimetric detection in an aqueous solution

Creator:: Clark, Eric J.
Resource Type:: Masters Thesis
Full Text:: reaction is by Simmons and CHO Johnson (11) who provide a probable theory. The discussion o

Applications of redox indicators for evaluating redox conditions in environmental samples

Creator:: Jones, Brian Dion
Resource Type:: Dissertation
Full Text:: (02, H202, H20), hydrogen (H2, W), nitrogen (NO3, NO2, N2, NIH), sulfur (S042, S032, S°. 11S ), iron

ScholarsArchive@OSU

Design and application of a microcomputer automated multielement flame atomic fluorescence instrument

Evaluation of sampling/preconcentration techniques and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water

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

The determination of free chloride utilizing chemiluminescence with continuous flow and flow injection analysis

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

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

Studies of chemical speciation of trace metals in natural waters using an on-line electrochemical cell and ion exchange system

Development and evaluation of sampling techniques, instrumentation, and pyridine derivative reagents for fluorometric determination of chloroform and TCE in water with a portable fluorometer

Studies of ammonia gas transport and fluorimetric detection in an aqueous solution

Applications of redox indicators for evaluating redox conditions in environmental samples

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