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Speciation of inorganic arsenic by hydride generation atomic absorption spectroscopy

Creator:: Ikeda, Marcia Sakiko
Abstract:: A sensitive technique for the determination of As(III) and As{V) at μ/L and sub-μg/L concentrations from a single sample aliquot has been developed. This technique is based on the hydride generation atomic absorption (HGAA) spectrophotometry. The hydrides of the arsenic species are generated in a reaction vessel by mixing the...
Resource Type:: Masters Thesis
Full Text:: Speciation of inorganic arsenic by hydride generation

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:: ) Burns, D. T.; Townshend, A.; Carter, A. H. Inorganic Reaction Chemistry, Vol. 2, Elements and their

Applications of redox indicators for evaluating redox conditions in environmental samples

Creator:: Jones, Brian Dion
Resource Type:: Dissertation
Full Text:: of Philosophy in Chemistry presented on April 30, 1999. Title: Applications of Redox Indicators for

Development of chemostats and use of redox indicators for studying redox transformations in biogeochemical matrices

Creator:: Lemmon, Teresa L.
Resource Type:: Dissertation
Full Text:: . Lemmon for the degree of Doctor of Philosophy in Chemistry presented on April 26, 1995. Title

Oxidation of ethanol and phenols with permanganate for chemiluminescence analysis

Creator:: Al-Mutawah, Jameela Isa
Resource Type:: Masters Thesis
Full Text:: Science in Chemistry presented on August 5, 1994 Title: Oxidation of Ethanol and Phenols with

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:: Doctor of Philosophy in Chemistry presented on June 11 2001 . Title: The Development and

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

Creator:: Clark, Eric J.
Resource Type:: Masters Thesis
Full Text:: in Chemistry presented on November 4, 1996. Title: Studies of Ammonia Gas Transport and Fluorimetric

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:: OF THE THESIS OF Sanchai Prayoonpokarach for the Master of Science in Chemistry presented on May 8

Fiber optic sensors and spectrometry for the detection of volatile gem-polyhalogenated hydrocarbons

Creator:: Louch, Jeff
Abstract:: A fiber optic fluorometer utilizing a double-fiber optic probe was constructed. The absolute fluorescence signal and effective collection efficiency are approximately one fifth those of typical cuvette fluorometers and agree with those predicted by theory. A quinine sulfate calibration curve shows linearity from a detection limit of 10 pg/mL to...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Chemistry presented on May 17, 1991 TITLE: Fiber Optic Sensors and

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

Creator:: Ruiz-Haas, Peter A.
Abstract:: New methods, sensors, and devices based on redox indicators were developed to monitor redox conditions in anoxic and anaerobic laboratory systems and the subsurface environment. The primary application was monitoring redox conditions during the dechlorination of tetrachioroethene (PCE) to ethene (ETH) in packed columns and microcosm bottles containing an enriched...
Resource Type:: Dissertation
Full Text:: degree of Doctor of Philosophy in Chemistry presented on May 1, 2006. Title: Monitoring Redox

ScholarsArchive@OSU

Speciation of inorganic arsenic by hydride generation atomic absorption spectroscopy

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

Applications of redox indicators for evaluating redox conditions in environmental samples

Development of chemostats and use of redox indicators for studying redox transformations in biogeochemical matrices

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

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

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

Fiber optic sensors and spectrometry for the detection of volatile gem-polyhalogenated hydrocarbons

Monitoring redox conditions with redox indicators during microbial reductive dechlorination in microcosms and bioaugmented columns

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