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ENVIRONMENTAL TECHNOLOGICAL VERIFICATION REPORT - L2000 PCB/CHLORIDE ANALYZER - DEXSIL CORPORATION
Citation:
Dindal, A. B., C. K. Bayne, AND R. A. Jenkins. ENVIRONMENTAL TECHNOLOGICAL VERIFICATION REPORT - L2000 PCB/CHLORIDE ANALYZER - DEXSIL CORPORATION. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-98/109 (NTIS PB2001-100488), 1998.
Description:
In July 1997, the U.S. Environmental Protection Agency (EPA) conducted a demonstration of Polychlorinated biphenyl (PCB) field analytical techniques. The purpose of this demonstration was to evaluate field analytical technologies capable of detecting and quantifying PCBs in soils and solvent extracts. The fundamental objectives of this demonstration were (1) to obtain technology performance information using environmental and quality control samples. (2) to determine how comparable the developer field analytical results were with conventional reference laboratory results, and (3) to report on the logistical operation of the technology. The demonstration design was subjected to extensive review and comment by EPA's National Exposure Research Laboratory (NERL) Environmental Sciences Division in Las Vegas, Nevada; Oak Ridge National Laboratory (ORNL); EPA Regional Offices; the U.S. Department of Energy (DOE); and the technology developers.
The demonstration found that the L2000 was simple to operate in the field, requiring less than 2 h for initial set-up and preparation for sample analysis. Once operational, the sample throughput of the L2000 during the demonstration was 5 to 10 samples/h. Two operators analyzed samples during the demonstration, but the technology can be run by a single trained person. Minimal training (<1h ) is required to operate the L2000 , provided the user has a fundamental understanding of basic chemical techniques. Because the PCB data generated in this demonstration strongly correlated (R2=0.95) with the reference laboratory results, it may be possible for Dexsil's L2000 PCB/Chloride analyzer to be used quantitatively, but the high bias must be considered. No "site effects" were observed in the data generated by the L2000 based on the change in environmental conditions. The overall performance was characterized as consistently biased but precise.