WE PROPOSE TO INVESTIGATE THE CHEMICAL REACTIONS INVOLVING LABORATORY-GENERATED AEROSOL ANALOGS ("THOLINS") IN THE PRESENCE OF AQUEOUS MEDIA USING A VARIETY OF CHEMICAL ANALYTIC TECHNIQUES FOR APPLICATION TO FUTURE IN-SITU EXPERIMENTS ON TITAN. THE DOZENS OF TITAN FLYBYS THROUGHOUT THE CASSINI-HUYGENS MISSION UNCOVERED A WIDE ARRAY OF CHEMICAL REACTIONS AND COMPLEX ORGANIC COMPOUNDS; HOWEVER DETAILS ABOUT THE REACTION PRODUCTS OF ORGANIC AEROSOLS THAT HAVE SETTLED ONTO TITAN'S SURFACE REMAIN ELUSIVE. ONE POSSIBILITY IS THAT ORGANICS REACT WITH LIQUID WATER WITHIN PARTIALLY MELTED IMPACT PONDS OR CRYOMAGMAS FORMING PREBIOTIC MOLECULES SIMILAR TO THOSE THAT FORMED ON EARLY EARTH. PREVIOUS EXPERIMENTAL STUDIES HAVE SHOWN THAT FOR A WIDE ARRAY OF THOLIN COMPOSITIONS AND AQUEOUS SOLVENTS BASIC AMINO ACIDS WILL FORM IMPLYING THAT REGIONS ON TITAN WHERE LIQUID WATER MIGHT EXIST ARE INDEED IMPORTANT TARGETS FOR STUDIES OF PREBIOTIC CHEMISTRY AND HABITABILITY. CHARACTERIZING THE REACTIVITY AND SOLUBILITY OF TITAN THOLINS IN AQUEOUS MEDIA WILL BE USEFUL IN DEVELOPING ORGANIC DETECTION LIMITS AND SPECTRAL LIBRARIES FOR IN-SITU MEASUREMENTS. CURRENTLY WE ARE ANALYZING THE MASS SPECTROSCOPY DATA OF THOLINS THAT REACTED IN WATER-AMMONIA MIXTURES AT 294 269 AND 240 K RESPECTIVELY FOR 90 DAYS. THESE EXPERIMENTS BUILD OFF OF COLLABORATIONS WITH MELISSA TRAINER AND XIANG LI AT THE PLANETARY ENVIRONMENTS LAB AT NASA GODDARD SPACE FLIGHT CENTER (GSFC) AND RECENT TEST STUDIES OF THE LASER DESORPTION (LD) MASS SPECTROMETER BEING DEVELOPED FOR DRAGONFLY AT THE APPLIED PHYSICS LABORATORY (APL). DRAGONFLY IS A ROTORCRAFT LANDER THAT WILL SAMPLE TITAN'S SURFACE AND ATMOSPHERE AND WAS RECENTLY ANNOUNCED AS A FINALIST IN THE NEW FRONTIERS MISSION PROGRAM. WHILE PREVIOUS STUDIES HAVE INVESTIGATED THE REACTIVITY AND KINETICS OF THOLINS IN WATER-AMMONIA MIXTURES USING MASS SPECTROSCOPY THIS WORK WILL DIFFER BY EXAMINING THE EFFECTS OF OXYGEN ON THOLIN HYDROLYSIS AND CORROBORATING DATA ACROSS MULTIPLE TECHNIQUES FOR FULLER CHARACTERIZATION. GIVEN THE PREVALENCE OF COMPLEX ORGANICS WITHIN THE OUTER SOLAR SYSTEM AND THE POSSIBILITY OF SIMILAR COMPOUNDS ON EXTRASOLAR MATERIALS RIGOROUS ANALYSES OF COMPLEX ORGANIC AEROSOLS ARE NECESSARY TO IMPROVE DETECTION IN A VARIETY OF ENVIRONMENTS