On-line monitoring trihalomethanes in chlorinated water by membrane introduction–fast gas chromatography mass–spectrometry

Determination of Chlorinated Hydrocarbons in Water Using Highly Sensitive Mid-Infrared Sensor Technology

“…For conventional chromatography (including GC/FID, GC/MS and HPLC )28293031, off-line sample pretreatment and preconcentration steps are required. Although latest attempts circumventing this step via e.g., membrane inlet proton transfer reaction mass spectrometry (MI-PTRMS) techniques32 and coupling of membrane inlets GC/MS33, the rather complex operating procedures and high instrumental costs still limit their widespread application. Other techniques such as quartz-crystal microbalance (QCM) sensors, and enzyme-linked immunosorbent assay (ELISA) also allow for direct and in-situ measurements.…”

Application of hollow fiber liquid phase microextraction for simultaneous determination of regulated and emerging iodinated trihalomethanes in drinking water

“…Conventional liquid-liquid extraction (LLE) [16][17][18][19], purge and trap [20][21][22][23][24], direct aqueous injection (DAI) [25][26][27], static headspace (HS) [28][29][30], solid-phase microextraction (SPME) [31,32], solid-phase extraction [33], headspace solid-phase microextraction (HS-SPME) [34][35][36][37], liquid-phase microextraction (LPME) [38,39], headspace-liquid-phase microextraction (HS-LPME) [40,41], hollow fiber membrane (HF-LPME) [42,43] and dispersive liquid-liquid microextraction (DLLME) [44,45], have been used to monitor regulated THMs species in drinking water.…”

Environmental Mass Spectrometry: Emerging Contaminants and Current Issues

“…THMs have also been the target of fast-GC and fast-GC/MS methods. For example, Chang and Her developed a MIMS-fast-GC/MS that enabled 20 samples to be analyzed per hour (108). The use of GC separation with MIMS allowed CHCl 3 and CHBrCl 2 to be distinguished in chlorinated drinking water.…”