Anal. Chem. 1987, 5 9 , 2165-2170
2165
Raman Intensities and Detection Limits of Geochemically Relevant Gas Mixtures for a Laser Raman Microprobe Brigitte Wopenka* and Jill Dill Pasteris
Department of Earth and Planetary Sciences and McDonnell Center for the Space Sciences, Box 1169, Washington University, S t . Louis, Missouri 63130
We describe Raman experiments on gas mlxtures of known composltlon contalnlng N, plus two or more of the following specles: SO2, COP, 02,CO, H2S, CH,, and H,. The mlxtures were used to callbrate a RAMANOR U-1000 with the goal of lncreaslng the accuracy of composltlonal analyses of fluld Inclusions In geologlcal samples. We derlved Instrumentspeclflc "Raman quantlfkatlonfactors" that Incorporate both relatlve (to N2) Raman Scattering cross sections and instrumental efflclencles. The experiments were done on gases In thln-walled, sHlca glass capllarles at
