Index Catalog // ScholarsArchive@OSU

Partial chemical speciation techniques for aquatic humic-metal complexes

Creator:: Chase, Duane Scott
Resource Type:: Masters Thesis

Continuous sample flow and mercury (II) speciation studies utilizing the cold vapor atomic absorption method for mercury determination

Creator:: Oda, Carl Ekio
Resource Type:: Masters Thesis

Analytical chemiluminescence measurements and instrumentation

Creator:: Marino, Dean Frank
Resource Type:: Dissertation

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

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

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

Application of flow injection analysis to enzymatic fluorescence kinetic methods

Creator:: Elliott, Colin Bruce
Abstract:: Studies of the use of NADH as the monitored fluorophore for enzymatic fluorescence kinetic methods are discussed. Interference studies for the detection of NADH and the adaptation and optimization of fluorescence kinetic measurements to four serum assays are also described. A microcomputer-controlled flow injection analysis (FIA) system was designed and...
Resource Type:: Dissertation

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

Design, construction and application of an instrument for simultaneous measurement of molecular fluorescence, absorbance and chemiluminescence

Creator:: Yappert, Marta Cecilia
Abstract:: An instrument was constructed to measure molecular fluorescence (FL) or chemiluminescence (CL) and absorbance (ABS) simultaneously. The lower, middle, and upper portions of the test solution are probed to obtain ABS, FL, and CL data. Optical fibers are used extensively. The ABS and FL or CL spectra are acquired in...
Resource Type:: Dissertation

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

ScholarsArchive@OSU

Partial chemical speciation techniques for aquatic humic-metal complexes

Continuous sample flow and mercury (II) speciation studies utilizing the cold vapor atomic absorption method for mercury determination

Analytical chemiluminescence measurements and instrumentation

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

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

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

Application of flow injection analysis to enzymatic fluorescence kinetic methods

Speciation of inorganic arsenic by hydride generation atomic absorption spectroscopy

Design, construction and application of an instrument for simultaneous measurement of molecular fluorescence, absorbance and chemiluminescence

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

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