ANALYSIS OF VOLATILE HALOGENATED HYDROCARBONS IN WATER BY SOLID-PHASEMICROEXTRACTION AND GC-MS

Experience with solid-phase microextraction (SPME) in the analysis of volatile halogenated hydrocarbons in water samples is described. Gas c hromatography-mass spectrometry was used as the final analytical metho d. It was found that SPME provides reproducible results, especially wh en the method of internal standard is used for the calibration. The de tection limit of the SPME-GC-MS is below 1 mu g.1(-1) for most of the volatile halogenated hydrocarbons tested, even if the MS instrument is operated in the full-scan mode. Advantages of the SPME can be summari zed as follows: the method is simple, rapid and straightforward, does not require solvents, and only a small volume of water sample is neede d.