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RECORD NUMBER: 20 OF 28

Main Title Method 1668C Chlorinated Biphenyl Congeners in Water, Soil, Sediment, Biosolids, and Tissue by HRGC/HRMS, April 2010.
CORP Author Environmental Protection Agency, Washington, DC. Office of Water.
Year Published 2010
Report Number EPA/820/R-10/005
Stock Number PB2010-115362
Additional Subjects Chlorinated aromatic hydrocarbons ; Water pollution sampling ; Soil sampling ; Test methods ; Quantitative chemical analysis ; Sediments ; Biosolids ; Isotope dilution ; High resolution ; Gas chromatography ; Mass spectroscopy ; EPA Method 1668 ; Chlorinated biphenyls
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB2010-115362 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 118p
Abstract
This C version of Method 1668 revises the quality control (QC) acceptance criteria in EPA Method 1668B to allow the upper recovery limit for some congeners to be above 100 percent, to revise the estimated method detection limits (EMDLs) and estimated minimum levels of quantitation (EMLs) to MDLs and MLs, and to makes other changes summarized below. The QC acceptance criteria developed in the interlaboratory method validation study of 1668A, and published in version B of the Method, did not allow the upper recovery limit for some congeners to be above 100 percent. The criteria have been revised based on data from the interlaboratory study and data from two laboratories with extensive experience in use of Method 1668A. TestAmerica, Knoxville, Tennessee and AXYS Analytical Services, Ltd., Sidney, British Columbia, Canada provided this new data. These two laboratories and Battelle- Columbus provided MDLs for the congeners and congener groups, which EPA pooled and used to replace the EMDLs and EMLs in Table 2 of Method 1668B with the MDLs and MLs in Method 1668C.