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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:: Privacy Chairman of the Department of Chemistry Redacted for Privacy Dean of Graduate Date thesis is

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:: major Redacted for Privacy Chairman of Department of Chemistry Redacted for Privacy n Dean of Graduat

The obstructive factor in gas chromatography

Creator:: Thumneum, Pornpan
Abstract:: The study of the obstructive factor by Hawkes (11) showed a relation between the obstructive factor and velocity using a continuous method. Later, Bowers and Hawkes (12) developed a similar method with some improvements in the apparatus and found out that the obstructive factor was not flow dependent. This study...
Resource Type:: Masters Thesis
Full Text:: Chairperson of Chemistry Department Redacted for Privacy \Dean of raduate School I Date thesis is presented

The synthesis of macrolactones from [omega]-hydroxyacyl xanthates

Creator:: Akella, Annapoorna
Resource Type:: Masters Thesis
Full Text:: of major Redacted for Privacy Chairman of Department of Chemistry Redacted for Privacy Dean of

The utilization of some amino acids by Azotobacter vinelandii

Creator:: Bilen, Oya Fatma
Abstract:: The effects of different nitrogen sources on the primary and secondary pathways of Azotobacter vinelandii cells were studied by means of the radiorespirometric method. C¹⁴ labeled glucose and several key amino acids related to the tricarboxylic acid cycle, such as glutamic acid, aspartic acid, alanine, serine and glycine were used...
Resource Type:: Masters Thesis
Full Text:: : Professor of Chemistry In Charge of Major Dean of Graduate School Date thesis is presented Typed by

A comparison of the extractives from four species of true firs

Creator:: Carlberg, Gary Lawrence
Resource Type:: Masters Thesis
Full Text:: privacy u Chairman of School Craduate Committee Redacted for privacy Dean of Graduate School Date

A method for the isolation of canavanine by ion exchange

Creator:: Fujiwara, Allan
Abstract:: In 1959 Kitagawa discovered and isolated the amino acid, canavanine. Since its discovery much interest has been centered on this amino acid because of its biological aspects; e.g. canavanine has been shown to inhibit the growth of bacteria, viruses, protozoa, and cancer cells. The occurrence of canavanine is widespread in...
Resource Type:: Masters Thesis
Full Text:: of Major of In Chairrnan of Departrnent of Chernistry Dean of Graduate School Date thesis is

Diffusion of n-alkanes in polydimethylsilicones

Creator:: Millen, William George
Abstract:: Diffusion of short chain n-alkanes was found to be faster in the polydimethylsilicone elastomer SE-30 than in the polydimethylsilicone oil SF-96-2000. The opposite was true for the longer chain n-alkanes suggesting that choice of stationary phase for gas chromatography would depend on the chain length of sample components. The dependence...
Resource Type:: Masters Thesis
Full Text:: of Chemistry Redacted for Privacy Dean of Graduate School Date thesis is presented Typed by

Decomposition of perfluoroalkyl groups bonded to boron

Creator:: Walsh, James Elroy William
Abstract:: All attempted synthesis of perfluoroalkyl boron bonded groups have resulted in the formation of boron-fluorine bonds from the probable decomposition by α-fluorine transfer. The substance alkali metal di-n- butylborate (I) has been identified as the potassium derivative by its reaction with di-n-butylboron chloride and isolation of potassium chloride. The reaction...
Resource Type:: Masters Thesis
Full Text:: Department of Chemistry Redacted for privacy Dean of Graduate School Date thesis is presented 714.1 19`7C

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:: Dean of I understand that my thesis will become part of the permanent collection of Oregon State

ScholarsArchive@OSU

Speciation of inorganic arsenic by hydride generation atomic absorption spectroscopy

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

The obstructive factor in gas chromatography

The synthesis of macrolactones from [omega]-hydroxyacyl xanthates

The utilization of some amino acids by Azotobacter vinelandii

A comparison of the extractives from four species of true firs

A method for the isolation of canavanine by ion exchange

Diffusion of n-alkanes in polydimethylsilicones

Decomposition of perfluoroalkyl groups bonded to boron

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

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