Journal
ARCHIVES OF TOXICOLOGY
Volume 77, Issue 4, Pages 183-193Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00204-003-0436-0
Keywords
monohydroxy polycyclic aromatic hydrocarbons hydroxyphenanthrene isomers; HPLC; fluorescence detection; urine; biomarkers
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Two fluorimetric HPLC methods are described for the quantification of naphthols, phenanthrols and 1-hydroxypyrene (1-OHP) in urine specimens obtained from male Wistar rats exposed to naphthalene, phenanthrene and pyrene. The polycyclic aromatic hydrocarbons (PAHs) were given intraperitoneally, either alone (1.0 mmol/kg body weight) or as an equimolar mixture (0.33 mmol/kg), using the same dosages for repeated treatments on week 1 and week 2. Between these treatments, PAH-metabolizing activities encoded by aryl hydrocarbon (Ah) receptor-controlled genes were induced in the rats with beta-naphthoflavone (betaNF). Chromatographic separation of five phenanthrols (1-, 2-, 3-, 4-, and 9-isomers) was accomplished using two different RP C-18 columns. Despite selective detection (programmable wavelengths), the quantification limits in the urine ranged widely: 1-OHP (0.18 mug/l)
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