Degree Type

Dissertation

Date of Award

1986

Degree Name

Doctor of Philosophy

Department

Chemistry

Abstract

A direct injection nebulizer (DIN) was designed, developed, and evaluated to determine its potential utilization as an effective inter- face for flow injection analysis (FIA) and high performance liquid chromatography (HPLC) coupled with inductively coupled plasma-atomic emission spectroscopic detection. The analytical figures of merit for the DIN when used as an interface for FIA-ICP-AES were found to be comparable to or better than those obtained with conventional pneumatic nebulization in terms of limits of detection (LODs), reproducibility, linearity, and interelement effects. In the HPLC mode, the LODs were found to be comparable to those obtained by continuous-flow sample introduction into the ICP, or inferior by up to only a factor of four. Stable plasma operation was maintained for the DIN sample introduction of a variety of pure organic solvents, including acetonitrile, methanol, methyl- isobutylketone, and pyridine. The HPLC-DIN-ICP-AES facility was specifically applied for the speciation of inorganic and organo- metallic species contained in synthetic mixtures, vanilla extracts, and a variety of energy-related materials, such as shale oil process;water, coal extracts, shale oil, crude oil, and an SRC II. Suggestions for future research are also considered; ('(DAG))DOE Report IS-T-1227. This work was performed under Contract W-7405-Eng-82 with the U.S. Department of Energy.

DOI

https://doi.org/10.31274/rtd-180813-12408

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

Kimberly E. LaFreniere

Language

en

Proquest ID

AAI8615061

File Format

application/pdf

File Size

202 pages

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