... CaxCrOy– ions (m/z 10 8, 12 4, 14 0, 14 8, 18 0, and 19 6) in the positive mode(Figure 7.7). In the negative mode, the cluster class CrxOy– (m/z 84, 10 0, 11 6, 16 8, 18 4, and 200)are always ... Introduction 15 9Study of Chromium in Polyphasic Dust 16 0Materials and Methods 16 0Sampling 16 0Analytical Techniques 16 1SEM Analysis 16 1Raman Microprobe 16 1X-ray Photoelectronic Spectroscopy (XPS) 16 1Laser ... 69 R, 19 84. 11 . Kimura, S., Kobayashi, M., Godai, T., and Minato, S., AWS, 60th Annual Meeting, Welding Research,Supplement, 19 79, 19 55. 12 . Delamar, M., Analusis, 16 , 419 , 19 88. 13 . Inni, M.E.,...