C/o spectrometer, mass, cat. No. Wg-570; automatic gas handling module, cat. No. Wg-145; software package, cat. No. Pb-031; minibeam ii ion gun module, cat. No. Wg-555; x y z manipulator, cat. No. Wg-130; used to do a qualitative elemental analyses of outer mono-atomic layer of metallic and non-metalic materials
