title: [N-hexane and toluene in the urine of occupationally exposed subjects. Measurement and significance of its presence].
abstract: N-hexane and toluene in the urine of occupationally exposed subjects. Measurement and significance of their presence. The determination of n-hexane and toluene in urine was performed in 23 subjects who were occupationally exposed to n-hexane and in 8 subjects exposed to toluene, by means of the head space technique. A Hewlett-Packard 5880 A gas chromatograph supplied with Hewlett-Packard 5970 A Mass Selective Detector was employed. The Authors found significant correlations between urine concentration of the substance and environmental concentration (for n-hexane r = 0,866; for toluene r = 0,770.
mesh_terms: D000328:Adult; D004781:Environmental Exposure; D008401:Gas Chromatography-Mass Spectrometry; D006586:Hexanes / Q000652:urine*; D006801:Humans; D008433:Mathematics; D008722:Methods; D008875:Middle Aged; D014050:Toluene / Q000652:urine*
chemical_list: D006586:Hexanes; C026385:n-hexane; D014050:Toluene
vernacular_title: N-esano e toluolo nelle urine di soggetti professionalmente esposti. Misura e significato della presenza.