WE PROPOSE TO DEVELOP TECHNIQUES FOR DETERMINING LIQUID COMPOSITIONS OF HYDROCARBON AND COMPLEX ORGANIC SOLIDS FROM INFRARED SPECTROSCOPY USING INEXPENSIVE AND ROBUST INSTRUMENTATION SUITABLE FOR INCORPORATION INTO FUTURE TITAN LANDED MISSIONS. DESPITE THE WEALTH OF INFORMATION PROVIDED BY THE CASSINI ORBITER MANY QUESTIONS ABOUT TITAN REMAIN PARTICULARLY REGARDING THE PRECISE COMPOSITION OF TITAN LAKES AND SEAS. THE DEVELOPMENT OF NEW INSTRUMENTS FOR IN-SITU TITAN STUDIES IS TIMELY GIVEN TITAN'S RECENTADDITION TO THE LIST OF POSSIBLE TARGETS FOR THE UPCOMING NEW FRONTIERS 4 OPPORTUNITY. HYDROCARBONS AND AROMATICS BOTH PRESENT IN TITAN'S LAKES AND SEAS HAVE STRONG ABSORPTION BANDS FROM COMBINATION AND OVERTONE MODES IN THE NEAR- AND SHORT-WAVELENGTH INFRARED (NIR 0.7-1.4 AND SWIR 1.4-3 RESPECTIVELY) AND FUNDAMENTAL STRETCHING AND BENDING MODES IN THE MID-INFRARED (MIR 3-8 ). USING THE DATA FROM THESE EXPERIMENTS WE PLAN TO DEVELOP A KEY SET OF BAND PARAMETERS THAT WILL BE USEFUL FORINTERPRETING ANY FUTURE ORGANIC CHEMISTRY MEASUREMENTS FROM LANDED MISSIONS ON TITAN (OR SIMILAR BODIES). ALSO WE WILL COMBINE EXPERIMENTAL DATA MEASURING THE PROPERTIES OF PURE LIQUID HYDROCARBONS WITH ANALYZED DATA FROM THE CASSINI RADAR TO CONSTRAIN TITAN LAKE COMPOSITIONS.. FINALLY GIVEN THE UTILITY OF FIBER OPTIC PROBE SPECTROSCOPY AS A ROBUST AND MINIMALLY INVASIVE CHEMICAL ANALYSIS TOOL WE WILL DESIGN A TEST BED FIBER OPTIC INSTRUMENT FOR USE ON FUTURE TITAN LANDED MISSIONS. IDEALLY THIS WILL MOTIVATE OR INSPIRE FIBER OPTIC PROBE INSTRUMENTS ON FUTURE TITAN LANDED MISSIONS FOR IN-SITU LAKE COMPOSITION MEASUREMENTS TO FURTHER OUR UNDERSTANDING OF TITAN'S ORGANIC CHEMISTRY.