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Filtering by: Creator Lee, Tong-Yee Advisor Piepmeier, Edward H. Degree Field Chemistry

Selective detection for gas chromatography by ultraviolet spectrometry

Creator:

Van Engelen, Debra L.

Abstract:

Spectrometric detection systems for gas chromatography (GC) based on gas phase ultraviolet absorbance and fluorescence measurements have been developed and evaluated in this research. Polynuclear aromatic compounds (PNAs) are selectively detected by these systems. Limits of detection for PNAs range from 4 ng to 90 ng for absorbance determinations, and...

Resource Type:

Dissertation
A multivariate statistical approach to identifying organic compounds using an oscillating plasma glow discharge detector for gas chromatography

Creator:

Smith, Diane Lynn

Abstract:

An oscillating plasma glow discharge detector for gas chromatography is used to obtain fingerprint information about an analyte by combining both the average cell current and oscillation frequency signals. Five homologs each of the n-alkanes, 1-alkenes, 1-alkynes, 2-ketones and aldehydes are studied. Although triplicate determinations had some scatter due to...

Resource Type:

Dissertation
Fundamental studies of a gas-jet enhanced sputtering system and its applications

Creator:

Kim, Hyo-jin

Abstract:

The use of gas jets in a sputtering cell makes this direct sampling method practical for atomic absorption and mass spectrometry determinations. With a commercial six-jet sputtering source, the Atomsource (Analyte Corp., Grants Pass, Oregon), that directly atomizes solid samples for conventional atomic absorption spectrophotometers, the sample loss rate for...

Resource Type:

Dissertation

Full Text:

, MyungHee and Jina, and to my parents, YongPom Kim, and SangNam Lee. I would like to thank Dr. Piepmeier