A simple and rapid method based on direct transfer of headspace vapor into the GC injector: application for determination of BTEX compounds in water and wastewater samples

Evaluating the consequences of household hazardous waste diversion on public health and ecological risks of leachate exposure

“…Extraction for analyzing benzene, toluene, ethylbenzene, and xylene (BTEX) in both MSWS and MSWH leachate samples proceeded as described before (Fakhari et al 2012 ). In the practical procedures, 15 mL of a filtered leachate sample was placed in 18 mL headspace vial.…”

Copolymer-Based Photonic Crystal Sensor for Discriminative Detection of Liquid Benzene, Toluene, Ethylbenzene, and Xylene

“…Benzene, toluene, ethylbenzene, and xylene (BTEX) are the most hazardous VOCs pollutants which are toxic and combustible. , They are frequently used as common starting chemicals and solvents for the manufacturing of chemical intermediates and products including lacquers, dyes, medicines, synthetic rubbers, etc. − The released liquid aromatic hydrocarbons, which generally derive from landfill leachates and leaks during production and transportation, contaminate soils, groundwater, and waterways − and pose a serious threat to both public health and the environment. Toxicological data indicated that prolonged exposure of these compounds could cause cancer, leukemia, nervous system disease, and kidney and liver damage. − As frequently used detection technology, gas chromatography (GC) coupled with mass spectrometer (MS) or flame ionization detectors (FID) has been used to detect aromatic hydrocarbons in the environment. Nevertheless, the bulky and expensive instruments as well as the requirement of relatively long operation and assay time bring the inconvenience of the technique. ,, PCs with adjustable and detectable optical properties provide a new platform for development of high-performance sensors for visual detection of aromatic hydrocarbons.…”