DOC; Mountain Administrative Support Center; Acquisition Management Division; 325 Broadway MC3; Boulder, CO

A -- ATMOSPHERIC MEASUREMENTS SOL NRMGB000900084MB POC Michelle Bernal, Purchasing Agent, (303) 497-3983 or FAX (303) 497-3163 E-MAIL: NOAA; MASC Acquisition Management, Michelle.A.Bernal@noaa.gov. The U.S. Department of Commerce, National Oceanic & Atmospheric Administration (NOAA), Aeronomy Laboratory, intends to award a sole source contract to Purdue University to perform measurements of isoprene nitrates and oxygenated products of biogenic hydrocarbon oxidation in the atmosphere at the Dickson, Tennessee monitoring site as part of the Southern Oxidants Study Field Campaign to be conducted in, and around, Nashville, TN during the summer of 1999. Atmospheric concentrations of isoprene nitrates, isoprene, alpha-pinene, beta-pinene, and aldehyde products of isoprene oxidation will be determined at the Dickson, TN site utilizing a 10-meter tower for a four-week period beginning June 15 1999. Isoprene nitrate measurements will be conducted using a novel combination of Tenax preconcentration/thermal desorption, followed by capillary gas chromatography with luminol detection. High molecular weight carbonyl compounds, e.g. nonanal, and terpenes, in particular a- and B-pinene, will be measured using ion trap MS/MS, using a proton transfer CI reagent gas, most likely either ethanol or H20. These measurements will be analyzed, in combination with other measurements performed at the same site to improve our understanding of the impact of isoprene oxidation on the fate and lifetime of NOx in the atmosphere. The measurement results and their interpretation will be published in the peer-reviewed literature within two years. This procurement is being conducted per FAR Part 13, Simplified Acquisition Procedures. This synopsis is issued for information only. No competitive solicitation is planned. No award will be made on the basis of requests in response to this notice. Information submitted in response to this notice will be used solely to determine whether or not use of competitive procedures to fulfill this requirement would be in the Government's best interest and must address qualifications pertinent to this requirement. Terms and Conditions and agency level protest procedures can be found on web site http: netsite.esa.doc.gov/oam. Hard copy in full text available from office address and phone number listed in notice. Anticipated Award date will be February 19, 1999. Posted 02/03/99 (D-SN294041). (0034)

Loren Data Corp. http://www.ld.com (SYN# 0015 19990205\A-0015.SOL)