MIC-SSMS

Jochum, K.P., Laue, H., Seufert, H.M., Dienemann, C., Stoll, B., Pfander, I, Flanz, M., Achtermann, H., Hofmann, A.W. (1997) Multi-ion counting-spark source mass spectrometry (MIC-SSMS) a new multielement technique in geo- and cosmochercastvy. Fresenius Journal of Analytical Chemistry, 359,385-389. 

Jochum, K.P. Stoll, B. Pfander, J.A Seufert, M. Flanz, M. Maissenbacher, P. Hofmarm, M. Hofmarm, A.W. Progress in Multi-Ion Counting Spark-Source Mass Spectrometry (MIC-SSMS) for the Tlnalysis of Geological Samples. Fresenius J. Anal. Chem. 2001, 370, 647-653. 

Even with improvements like MIC and automatic control of the electrode positions [128], SSMS fell out of favor because of the complex and expensive instruments, the rather time-consuming analysis, and the improvements of other mass spectrometric techniques. Few systems are still operational, but sale of commercial instruments stopped already in 1997. 

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