Oznaczanie 1,2-dihydroksybenzenu w powietrzu na stanowiskach pracy metodą chromatografii gazowej z detekcją płomieniowo-jonizacyjną

Abstract

1,2-Dihydroxybenzene is a colorless crystalline substance with a characteristic odor that turns brown when exposed to air and light. It is used in industry as an antioxidant. Worker exposure to 1,2-dihydroxybenzene can occur during the production, processing and use of the chemical, through inhalation, dermal and gastrointestinal routes. The aim of the study was to develop a method for the determination of 1,2-dihydroxybenzene to assess occupational exposure within 1/10–2 of the proposed MAC value (10 mg/m3 ). The method involves the collection of 1,2-dihydroxybenzene in a system consisting of a glass fiber filter and a tube containing two layers of XAD-7 sorbent, extraction with a solution of N,N-dimethylformamide in methanol, and chromatographic analysis of the resulting solution. The method allows the determination of 1,2-dihydroxybenzene in air in the concentration range from 1.0 to 20.0 mg/m3 . The method has been validated in accordance with PN-EN 482. The scope of the article includes health and environmental health and safety issues being the subject of research in health sciences and environmental engineering.