ILO Home
Go to the home page
Site map | Contact us Français | Español

CISDOC database

Document ID (ISN)37548
CIS number 82-774
ISSN - Serial title 0049-8610 - Zeitschrift für die gesamte Hygiene und ihre Grenzgebiete
Year 1981
Convention or series no.
Author(s) Gutewort T., Gartzke J., Pannier R.
Title Urinary hippuric acid excretion as an index of occupational toluene exposure
Original title Die Hippursäureausscheidungsrate im Harn zur Bewertung einer beruflichen Toluolexposition [in German]
Bibliographic information Jan. 1981, Vol.27, No.1, p.57-63. Illus. 35 ref.
Abstract Description of research to assess the value of urinary hippuric acid as a biological index of toluene exposure in 13 print workers exposed solely to toluene. Mean toluene concentration in the respiratory zone was determined by gas chromatography and urinary hippuric acid by photometry. There was a significant linear correlation between the toluene concentration and urinary hippuric acid excretion. Discussion of the selectivity, specificity and ease of use of the hippuric acid screening method (thin-layer chromatography or densitometry) and of the validity of this biological exposure test (ability to discriminate between exposed and unexposed persons, normal range of hippuric acid values). Appendix: description of the method for determining urinary hippuric acid.
Descriptors (primary) printing industry; toluene; exposure tests; urinary excretion; hippuric acid
Descriptors (secondary) biological threshold limits; thin-layer chromatography; urine monitoring; photometry
Document type D - Periodical articles
Subject(s) Occupational pathology
Broad subject area(s)
Browse category(ies) Biological monitoring
Aromatic hydrocarbons
Printing, photography and photocopying industry