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Salmonella typhimurium is one of the common food pathogens which may cause gastroenteritidis in human. In order to find the prevalent and recirculating strains of S. typhimurium which caused food-poisoning diarrhoea cases in northern Taiwan, 45 randomly selected S. typhimurium strains isolated from food-poisoning cases during 1991–1994 were subjected to pulsed field gel electrophoresis (PFGE), plasmid...
A range of analytical techniques has been used to characterise the chemistry and morphology of a diesel-engine and an exhaust soot, and a comparison made with a selection of commercial carbon blacks. Significant differences have been observed in the chemical composition of exhaust and engine soots, particularly in their surface chemistry and the presence of adsorbed lubricant components on the engine...
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