Development of Simultaneous in situ Analysis of Carbon and Nitrogen Isotope Ratios in the Organic Matter by Secondary Ion Mass Spectrometry

Akizumi Ishida1, Kouki Kitajima2, Kenneth H Williford3, Takeshi Kakegawa1 and John W Valley4, (1)Tohoku University, Sendai, Japan, (2)University of Wisconsin, Madison, WI, United States, (3)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, United States, (4)Univ Wisconsin Madison, Madison, WI, United States