Method | EPA Method 503.1 |
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Title | VOLATILE AROMATIC AND UNSATURATED ORGANIC COMPOUNDS INWATERBY PURGE AND TRAP GAS CHROMATOGRAPHY |
Abstract | Highly volatile organic compounds with low water solubility are extracted (purged) from a 5-mL sample by bubbling an inert gas through the aqueous sample. Purged sample components are trapped in a tube containing a suitable sorbent material. When purging is complete, the sorbent tube is heated and backflushed with an inert gas to desorb trapped sample components onto a gas chromatography (GC) column. The gas chromatograph is temperature programmed to separate the method analytes which are then detected with a photoionization detector. A second chromatographic column is described that can be used to help confirm GC identifications or resolve coeluting compounds. Analyses may be performed by gas chromatography/mass spectrometry (GC/MS) according to Method 524.1 or Method 524.2. |
CAS # | Compound Name |
---|---|
71-43-2 | Benzene |
108-86-1 | Bromobenzene |
104-51-8 | n-Butylbenzene |
135-98-8 | sec-Butylbenzene |
98-06-6 | tert-Butylbenzene |
108-90-7 | Chlorobenzene |
95-49-8 | 2-Chlorotoluene |
106-43-4 | 4-Chlorotoluene |
95-50-1 | 1,2-Dichlorobenzene |
541-73-1 | 1,3-Dichlorobenzene |
106-46-7 | 1,4-Dichlorobenzene |
100-41-4 | Ethylbenzene |
87-68-3 | Hexachlorobutadiene |
98-82-8 | Isopropylbenzene |
99-87-6 | 4-Isopropyltoluene |
91-20-3 | Naphthalene |
103-65-1 | n-Propylbenzene |
100-42-5 | Styrene |
127-18-4 | Tetrachloroethene |
108-88-3 | Toluene |
87-61-6 | 1,2,3-Trichlorobenzene |
120-82-1 | 1,2,4-Trichlorobenzene |
79-01-6 | Trichloroethene |
95-63-6 | 1,2,4-Trimethylbenzene |
108-67-8 | 1,3,5-Trimethylbenzene |
95-47-6 | o-Xylene |
108-38-3 | m-Xylene |
106-42-3 | p-Xylene |