Determination of Polychlorinated Biphenyls in Water Samples Using a Needle Trap Device Combined with Gas Chromatography
The method presented here, which uses a novel needle trap device (NTD) with sol-gel PEG-coated fibers in conjunction with GC, is a simple, inexpensive, and accurate tool for the analysis of trace levels of PCBs in water samples.
Determination of Organophosphate Esters in Water Samples Using Gas Chromatography–Mass Spectrometry (GC–MS) and Magnetic Solid-Phase Extraction (SPE) Based on Multi-Walled Carbon Nanotubes (MWCNTs)
A GC–MS method, coupled with magnetic SPE with multi-walled carbon-nanotube (MWCNT)-coated iron oxide as the adsorbent, was developed for analyzing organophosphate esters in environmental water samples.
Determination of Organophosphate Esters in Water Samples Using Gas Chromatography– Mass Spectrometry and Magnetic Solid-Phase Extraction Based on Multi-Walled Carbon Nanotubes
A method based on GC–MS coupled with magnetic SPE with multi-walled carbon-nanotube-coated Fe3O4 as adsorbent was developed for the analysis of four organophosphate esters (OPEs) in ambient water samples. The method was validated for its comparable sensitivity and potential application prospect.