Monitoring of sulfur hexafluoride (s'F IND.6') environmental and technological relevance - Segundo, S M A; Soppart, O; Janissek, P R; Baumbach, J I; Heise, H M; Neves, Eduardo Fausto de Almeida; Klockow, D; Gutz, Ivano Gebhardt Rolf (International Colloquium on Process Related Analytical Chemistry in Environmental Investigations, 1996)