Title

The potential of solid phase microextraction (spme) for the recovery of explosives followed by gas and liquid chromatographic analysis

Document Type

Thesis

Degree

Master of Science (MS)

Department

Chemistry

First Advisor's Name

Kenneth G. Furton

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Rudolf Jaffe

Third Advisor's Name

Yiwei Deng

Date of Defense

3-12-1998

Abstract

The potential of solid phase microextraction (SPME) in the analysis of explosives is demonstrated. A sensitive, rapid, solventless and inexpensive method for the analysis of explosives and explosive odors from solid and liquid samples has been optimized using SPME followed by HPLC and GC/ECD. SPME involves the extraction of the organic components in debris samples into sorbent-coated silica fibers, which can be transferred directly to the injector of a gas chromatograph. SPME/HPLC requires a special desorption apparatus to elute the extracted analyte onto the column at high pressure. Re suits for use of GC[ECD is presented and compared to the results gathered by using HPLC analysis. The relative effects of controllable variables including fiber chemistry, adsorption and desorption temperature, extraction time, and desorption time have been optimized for various high explosives.

Identifier

FI14051148

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