Analysis of Polar Organic Compounds by TAG-AMS: Case Study of an Alpine Valley in France. AMELIE BERTRAND, H. Langley DeWitt, Brice Temime-Roussel, Thorsten Hohaus, Donna Sueper, Florie Chevrier, Jean-Luc Besombes, Jean-Luc Jaffrezo, Grisa Mocnik, Nathan Kreisberg, Gabriel Isaacman, Susanne Hering, Allen H. Goldstein, John Jayne, Henri Wortham, Nicolas Marchand, Aix-Marseille Université, CNRS, LCE FRE 3416