title: [Evaluation of the stability of biological specimens used for monitoring of occupational exposure. Studies of the stability of phenol and trichloroacetic acid in urine].
abstract: The paper presents results of studies on phenol and trichloroacetic acid concentration in urine samples stored for 30 days at + 5 degrees C and + 20 degrees C. It has been checked whether the addition of sulphuric acid as a conservant to urine can affect changes in phenol concentration in the samples stored. The results obtained did not indicate any significant changes in concentrations of phenol or trichloroacetic acid in the urine samples. It has been recommended that due to bacterial processes the material studied should be kept in refrigerator (+ 5 degrees C).
authors.affiliation: Instytutu Medycyny Pracy w Lodzi.
authors.forename: K
authors.initials: K
authors.lastname: Antczak
mesh_terms: D002617:Chemical Industry / Q000592:standards*; D004355:Drug Stability; D006801:Humans; D008452:Maximum Allowable Concentration; D008991:Monitoring, Physiologic / Q000592:standards; D009787:Occupational Medicine / Q000592:standards*; D019800:Phenol; D010636:Phenols / Q000592:standards / Q000652:urine*; D011044:Poland; D011309:Preservation, Biological / Q000592:standards; D013696:Temperature; D013997:Time Factors; D014238:Trichloroacetic Acid / Q000592:standards / Q000652:urine*
chemical_list: D010636:Phenols; D019800:Phenol; D014238:Trichloroacetic Acid
vernacular_title: Ocena stabilności materiału biologicznego przeznaczonego do monitorowania ekspozycji przemysłowej.