| Title: | "[Method for the determination of tetrachloromethane, trichloroethane, 1,1,2-trichloroethane, and tetrachloroethene in the air at workplaces]" |
| Author(s): | Kowalska J; Szewczynska M; |
| Address: | "Centralny Instytut Ochrony Pracy - Panstwowy Instytut Badawczy / Central Institute for Labour Protection - National Research Institute, Warsaw, Poland (Zaklad Zagrozen Chemicznych, Pylowych i Biologicznych / Department of Chemical, Aerosol and Biological Hazards)" |
| ISSN/ISBN: | 2353-1339 (Electronic) 0465-5893 (Linking) |
| Abstract: | "BACKGROUND: Chemical substances from the halogenated aliphatic hydrocarbons group are used in industry, e.g., as intermediates in syntheses, auxiliaries, solvents in degreasing processes, and laboratory tests. Due to their harmful effects on human health and the environment, their use is often banned or limited to certain industrial uses only. MATERIAL AND METHODS: A sorbent tube containing 2 layers (100/50 mg) of coconut shell charcoal was used as a sampler for air sampling. Gas chromatography-mass spectrometry technique and the use of HP-5MS column (30 m x 0.25 mm x 0.25 mum), an oven temperature ramp program from 40 degrees C to 250 degrees C and selected ion monitoring mode were chosen for the determination. RESULTS: The established chromatographic conditions enable the simultaneous determination of tetrachloromethane, trichlorethane, 1,1,2-trichloroethane and tetrachloroethene in the concentration range 2-100 mug/ml. The average desorption coefficients obtained were: 0.97 for tetrachloromethane, 0.96 for trichloroethene, 0.96 for 1,1,2-trichloroethane and 0.96 for tetrachloroethene. CONCLUSIONS: The calculation of the substance concentration in the analyzed air requires the determination of the amount of substances trapped by the sorbent tube, the desorption coefficient and the air sample volume. Adequate dilution of the extract makes it possible to determine tetrachloromethane, trichloroethene, 1,1,2-trichloroethane and tetrachloroethene in ranges corresponding to 0.1-2 times the maximum admissible concentrations in the workplace air. This article discusses the issues occupational safety and health, which are the subject matter of health sciences and environmental engineering research. Med Pr. 2023;74(1):53-62" |
| Keywords: | "Humans Trichloroethanes *Tetrachloroethylene Carbon Tetrachloride *Trichloroethylene Workplace *Hydrocarbons, Halogenated determination method environmental engineering halogenated aliphatic hydrocarbons health sciences occupational exposure workplace air;" |
| Notes: | "MedlineKowalska, Joanna Szewczynska, Malgorzata pol English Abstract Poland 2023/03/02 Med Pr. 2023 Mar 8; 74(1):53-62. doi: 10.13075/mp.5893.01324. Epub 2023 Mar 1" |
