SEMIVOLATILE ORGANIC COMPOUNDS BY GAS CHROMATOGRAPHY/MASS
This method is used to determine the concentration of semivolatile organic compounds in extracts prepared from many types of solid waste matrices, soils, air sampling media and water samples.
This method can be used to quantitate most neutral, acidic, and basic organic compounds that are soluble in methylene chloride (or other suitable solvents provided that the desired performance data can be generated) and are capable of being eluted, without derivatization, as sharp peaks from a gas chromatographic fused-silica capillary column coated with a slightly polar silicone. Such compounds include PAHs, chlorinated hydrocarbons, chlorinated pesticides, phthalate esters, organophosphate esters, nitrosamines, haloethers, aldehydes, ethers, ketones, anilines, pyridines, quinolines, aromatic nitro compounds, and phenols (including nitrophenols).
The samples are prepared for analysis by GC/MS using the appropriate sample preparation (refer to Method 3500) and, if necessary, sample cleanup procedures (refer to Method 3600). The semivolatile compounds are introduced into the GC/MS by injecting the sample extract into a GC equipped with a narrow-bore fused-silica capillary column. The GC column is temperature-programmed to separate the analytes, which are then detected with an MS connected to the GC. Analytes eluted from the capillary column are introduced into the MS via a direct connection. Identification of target analytes is accomplished by comparing their mass spectra and retention times (RT) with the mass spectra and RTs of known standards for the target compounds. Quantitation is accomplished by comparing the response of a major (quantitation) ion relative to an internal standard (IS) using an appropriate calibration curve for the intended application.
-SW-846 Update IVA
|Hold Time||Aqueous samples - 7 days (sample), 40 days (extract)|
|Hold Time||Solid samples - 14 days (sample), 40 (extract)|
|Preservation||Store the extract at 4 degrees C, protected from light in screw-cap vials equipped with unpierced Teflon lined septa|
|Sample Volume||Depends on sample matrix|
|Method Refernce||EPA Method 8270|
|4-Bromophenyl phenyl ether|
|4-Chlorophenyl phenyl ether|
|Butyl benzyl phthalate|
*Please contact our project management team for more information about reporting limits and other specific project needs.
Request A Quote
If you would like us to provide a quote for laboratory analysis, just provide us with information about how we can help you with your project.