NSF Org:	AGS Division of Atmospheric and Geospace Sciences
Recipient:	UNIVERSITY OF MIAMI
Initial Amendment Date:	April 22, 1993
Latest Amendment Date:	March 31, 1994
Award Number:	9215106
Award Instrument:	Continuing Grant
Program Manager:	Jarvis L. Moyers AGS  Division of Atmospheric and Geospace Sciences GEO  Directorate for Geosciences
Start Date:	May 1, 1993
End Date:	April 30, 1996 (Estimated)
Total Intended Award Amount:	$170,700.00
Total Awarded Amount to Date:	$170,700.00
Funds Obligated to Date:	FY 1993 = $96,200.00 FY 1994 = $74,500.00
History of Investigator:	Anthony Hynes (Principal Investigator) ahynes@rsmas.miami.edu
Recipient Sponsored Research Office:	University of Miami 1251 MEMORIAL DR CORAL GABLES FL  US  33146-2509 (305)421-4089
Sponsor Congressional District:	27
Primary Place of Performance:	University of Miami 1251 MEMORIAL DR CORAL GABLES FL  US  33146-2509
Primary Place of Performance Congressional District:	27
Unique Entity Identifier (UEI):	KXN7HGCF6K91
Parent UEI:	VNZZYCJ55TC4
NSF Program(s):	Atmospheric Chemistry
Primary Program Source:	app-0194
Program Reference Code(s):	OTHR, 0000
Program Element Code(s):	152400
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.050

ABSTRACT

This research program is two years in duration and involves the development of a novel photofragmentation-laser induced fluorescence technique for the study of hydroperoxyl (HO2) radical kinetics under atmospheric conditions. It builds on a demonstrated capability to detect hydroxyl (HO) radicals with high sensitivity in laboratory kinetic studies. A single pulsed laser system will be used to photodissociate HO2, generating OH photofragments which will then be detected by laser induced fluorescence. Laser flash photolysis will be used to generate HO2. Initial work will focus on determining the optimal HO detection scheme to maximize sensitivity and minimis interferences. Four potential HO2 production schemes will be used to study the kinetics of the reaction of the hydroperoxyl radical with nitric oxide.

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