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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 43 (1979), S. 159-166 
    ISSN: 1432-1246
    Keywords: Urinary thioethers ; Mercapturic acids ; Mutagenicity of urine ; Cigarette smoking ; Potentially alkylating agents ; Exposure test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Urinary thioether compounds, such as mercapturic acids, can be considered as nontoxic end products of potentially alkylating agents. On the other hand, urinary mutagenicity may represent the excretion of potential mutagens that have not definitively been detoxified by the organism. It is suggested that a combined urinary thioether and mutagenicity test may be useful in monitoring people occupationally exposed to potentially alkylating compounds, in particular to mixtures of these chemicals. Exposure to cigarette smoke, containing several known mutagens and carcinogens, is expected to interfere with the test results. The excretion of mutagens and thioethers was determined in urine of smokers and nonsmokers. Smokers excrete more mutagens and thioether compounds than nonsmokers. Further, it was found that the urinary mutagenicity and thioether level are significantly related to the amount of cigarettes smoked.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0738
    Keywords: Carbon disulfide ; Viscose rayon industry ; CS2-metabolite ; Biological monitoring ; 2-Thiothiazolidine-4-carboxylic acid ; HPLC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A compound was isolated from the urine of workers exposed to carbon disulfide during the production of rayon. The compound was identified as 2-thiothiazolidine-4-carboxylic acid (TTCA) by GC/MS and NMR. A HPLC method for the quantitative determination of TTCA was elaborated and applied to urine samples. The method allowed detection of TTCA concentrations in urine as low as 5 × 10−7 M. No TTCA was detected in urine of workers occupationally exposed to organic solvents other than CS2. High concentrations of TTCA (upto 32×10−5 M) were shown to be present in urine of spinners exposed to CS2 concentrations of approximately 100 mg/m3. It is suggested that the assay of urinary TTCA is suitable for detection of occupational exposure to CS2.
    Type of Medium: Electronic Resource
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