You are here:
DEMONSTRATION BULLETIN: CLOR-N-SOIL PCB TEST KIT L2000 PCB/CHLORIDE ANALYZER - DEXSIL CORP.
Citation:
Hess, E. AND D. Hamilton. DEMONSTRATION BULLETIN: CLOR-N-SOIL PCB TEST KIT L2000 PCB/CHLORIDE ANALYZER - DEXSIL CORP. EPA/540/MR-95/518, 1995.
Impact/Purpose:
information
Description:
DEXSIL CORP(Environmental Test Kits)The Dexsil Corporation (Dexsil) produces two test kits that detect polychlorinated biphenyls (PCB) in soil: the Dexsil Clor-N-Soil PCB Screening Kit, and the Dexsil L2000 PCB/Chloride Analyzer. The Dexsil Clor-N-Soil PCB Screening Kit extracts PCBs from soil and dissociates the PCBs with a sodium reagent, freeing chloride ions. These ions then react with mercuric ions to form mercuric chloride compound. The extract is then treated with diphenylcarbazone, which reacts with free mercuric ions to form a purple color. The less purple the color, the greater the concentration of PCBs in the extract. The Dexsil L2000 PCB/Chloride Analyzer also extracts PCBs from soil and dissociates the PCBs with a sodium reagent, freeing chloride ions. The extract is then analyzed with a calibrated chloride-specific electrode. The L2000 instrument then translates the output from the electrode into parts per million (ppm) PCB concentration.