Volatile Organic Compound Testing

Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary room temperature. Their high vapor pressure results from a low boiling point, which causes large numbers of molecules to evaporate or sublimate from the liquid or solid form of the compound and enter the surrounding air.

 

The concentration of Volatile Organic Compounds (VOCs) are determined using Purge & Trap sample concentration and Gas Chromatography - Mass Spectrometry (GC-MS).

Method 8260 is used when analyzing surface and ground water as well as solid sample matrices. Method 624 is used for wastewater samples.  The procedures are very similar, however the reported compound lists are somewhat different.

Drinking water is typically analyzed by method 524.2.  The conditions used in this method enables a lower detection limit to be reached. This provides results that meet drinking water regulatory limits or MCLs.

Recently, requirements for lower detection limits for several groundwater contaminants were implemented. We are able to meet these by utilizing  a "Low Level 8260 modified" procedure which uses SIM techniques. Please contact us if you have questions about this technology.

The following analytes are commonly reported:


dichlorodifluoromethane
chloromethane
vinyl chloride
bromomethane
chloroethane
trichlorofluoromethane
diethyl ether
acetone
1,1-dichloroethene
methylene chloride
carbon disulfide
methyl t-butyl ether (MTBE)
trans-1,2-dichloroethene
isopropyl ether (DIPE)
ethyl t-butyl ether (ETBE)
1,1-dichloroethane
t-butanol (TBA)
2-butanone (MEK)
2,2-dichloropropane
cis-1,2-dichloroethene
chloroform
bromochloromethane
tetrahydrofuran (THF)
1,1,1-trichloroethane
1,1-dichloropropene
t-amyl-methyl ether (TAME)
carbon tetrachloride
1,2-dichloroethane
benzene
trichloroethene
1,2-dichloropropane
bromodichloromethane
1,4-dioxane
dibromomethane
4-methyl-2-pentanone (MIBK)
cis-1,3-dichloropropene
toluene
trans-1,3-dichloropropene
2-hexanone
1,1,2-trichloroethane
1,3-dichloropropane
tetrachloroethene
dibromochloromethane
1,2-dibromoethane (EDB)
chlorobenzene
1,1,1,2-tetrachloroethane
ethylbenzene
m&p-xylenes
o-xylene
styrene
bromoform
isopropylbenzene
1,1,2,2-tetrachloroethane
1,2,3-trichloropropane
n-propylbenzene
bromobenzene
1,3,5-trimethylbenzene
2-chlorotoluene
4-chlorotoluene
tert-butylbenzene
1,2,4-trimethylbenzene
sec-butylbenzene
1,3-dichlorobenzene
4-isopropyltoluene
1,4-dichlorobenzene
1,2-dichlorobenzene
n-butylbenzene
1,2-dibromo-3-chloropropane (DBCP)
1,2,4-trichlorobenzene
hexachlorobutadiene
naphthalene
1,2,3-trichlorobenzene

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