NEMI Method Summary

Method Summary Information

Method Number: 8011 Media: WATER
Revision: Revision 0, July 1992
Method Source: U.S. EPA Office of Solid Waste
Subcategory: ORGANIC Analytes in this method
Official Name: 1,2-Dibromoethane and 1,2-Dibromo-3-chloropropane by Microextraction and Gas Chromatography
Descriptive Name EDB and DBCP by Microextraction and Gas Chromatography
Source Info: U.S. EPA Office of Solid Waste (OSW) Methods Team
Ariel Rios Bldg. (5307W)
1200 Pennsylvania Ave. NW
Washington, DC 20460
Phone: 703-308-8855
Fax: 703-308-0511
Citation: SW-846 On-line
176516 Byte file
Brief Method
Summary:
 Samples are extracted with hexane and are analyzed using a gas chromatograph equipped with an electron capture detector.
Scope And
Application:
 This method determines the concentration of EDB and DBCP in drinking and ground water.
Applicable
Conc Range:
 0.03 - 200 ug/L.
Interferences: (A) Contamination: Impurities found in hexane used in extraction is the source for the majority of interferences. These impurities may be discovered through the analysis of reagent blanks. The impurities can be removed by distillation or column chromatography, however, it is recommended to obtain a new source of hexane solvent. Sample contamination may occur by diffusion of volatile organics through the septum seal during shipment and storage. The analysis of trip blanks will identify this problem.
(B) Matrix interferences: The extraction technique extracts a wide range of non-polar organic compounds and some polar organic compounds. EDB at low concentrations may be masked by high concentrations of dibromochloromethane when using the confirmation column.
QC Requirements: Periodic analysis of laboratory reagent and calibration blanks, reference and check standards, spikes, and replicates as a continuing check on performance.
Sample Handling: See SW-846 Chapter Four for information.
Max Holding Time:
 See SW-846 Chapter Four for information.
Sample Prep Met Method 8011
Relative Cost: $201 to $400
5240
Page 1