1. Problem Various starting substances and additives are needed to produce consumer products based on natural and synthetic rubber. They include vulcanisation accelerators from the group of dithiocarbamates and thiurames which are converted during the vulcanisation process into N-nitrosamines and nitrosatable amines. Migratable levels of N-nitrosamines and nitrosatable amines have been repeated...

Monoclonal antibodies have been raised against rat kidney gamma-glutamyl transpeptidase (GGT). All five antibodies immunoprecipitate enzyme activity from solubilized kidney brush-border membranes, but not from hepatocellular carcinoma membranes. Three of the antibodies react immunohistochemically with brush-border membranes in sections of adult rat kidney, but none of the antibodies cross-react...