HAVA ÖRNEKLERİNDEKİ KİMİ UÇUCU ORGANİK BİLEŞİKLERİN DİSPERSİF SIVI-SIVI MİKRO-ÖZÜTLEME TEKNİĞİ İLE ANALİZİ
Project no. 464 · Status: Kapanmış · 2017
Summary
Monitoring of volatile organic compounds (VOCs) in air samples has received great attention in recent years due to their harmful effects on humans and the environment. In this study, a low cost and simple method was developed for the analysis of benzene, toluene, ethyl benzene, p-xylene and o-xylene in air samples. For this purpose, firstly the prepared gas samples were passed through the aqueous solution in which the extraction solution was dispersed by using a vacuum pump. In this prosedure the analytes were transferred to the organic phase. After this process, the extraction solvent in the organic phase was separated by centrifugation and this part was injected into the GC-FID system using insert vials. 1-undecanol, 1-dodecanol, hexane, carbondisulfide, tetrachloroethylene and nitrobenzene were tried as extraction solvent and the best yield was determined by using nitrobenzene as an extraction solvent. The optimization of the method was performed and the calibration curves of each targeted VOCs were performed under optimum conditions. Analytical figure of merits of the proposed method fort he targeted VOCs was determined.