Novel Analytical techniques based on an enhanced electron attachment process

Pinnaduwage, Lal A. ; Buchanan, Michelle V. ; B., Hurst Gregory

University of Tennessee

关键词: Rare Gases;    Research Programs;    Glow Discharges;    Metastable States;    Excitation;   

DOI  :  10.2172/828204
RP-ID  :  EMSP-55328-2000
RP-ID  :  FG07-96ER62304
RP-ID  :  828204

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this research program is to develop new analytical techniques based on the large cross sections associated with dissociative electron attachment to highly-excited molecular states. Such highly-excited states can be populated by using fixed frequency lasers or in glow discharges via excitation transfer from high-lying, metastable states of rare gases. It is anticipated that these studies will lead to negative-ion based analytical techniques for the detection of DNAPLs (dense non-aqueous phase liquids), VOCs (volatile organics) and other toxic compounds at DOE waste sites. We have made significant advances toward this goal as described below.