Water quality - Gas-chromatographic determination of a number of monocyclic aromatic hydrocarbons, naphthalene and several chlorinated compounds using purge-and-trap and thermal desorption
The method specifies a general method for the determination of volatile organic compounds (VOC´s) in water by purge and trap isolation and gas chromatography (GC). The annexes A, B, and C show examples of analytes that may be determined by this standard. They range from difluorodichloromethane (F-12) up to trichlorobenzene, including all non polar organic compounds of intermediate volatility. Detection is preferably carried out by mass spectrometry in the electron impact mode (EI), but other detectors may be applied as well. The limit of detection largely depends on the detector in use and the operational parameters. Typically detection limits as low as 10