PCB (Polychlorinated Biphenyls)
PCB (Polychlorinated Biphenyls)
PCB_None_Other_IMM_Eng_Ody.fm Page 9 of 10
Interpretation
Interpretation for a soil sample:
Sample #1 — Sample reading is less than the readings for both calibrators.
Therefore the sample concentration of PCB is greater than both 1 ppm and
5 ppm as Aroclor 1248.
Sample #2 — Sample reading is between the readings for the 1 ppm and 5 ppm
PCB calibrators. Therefore the sample concentration of PCB is between 1 ppm
and 5 ppm as Aroclor 1248.
Sample #3 — Sample reading is greater than the readings for both calibrators.
Therefore the sample concentration of PCB is less than both 5 ppm and 1 ppm as
Aroclor 1248.
Storing and Handling Reagents
• Wear protective gloves and eyewear.
• When storing reagent sets for extended periods of time, keep them out of
direct sunlight. Store reagents at a temperature of 4 °C when not in use.
• Keep the foil pouch containing the PCB Antibody Cuvettes sealed when not
in use.
• If Stop Solution comes in contact with eyes, wash thoroughly for 15 minutes
with cold water and seek immediate medical help.
Sensitivity
The PCB immunoassay cannot differentiate between the various Aroclors, but it
detects their presence in differing degrees.
The following compounds are not detectable at 1000 ppm.
Sample Collection and Storage
Analyze the samples as soon as possible after collection. If the samples must be
stored, collect them in glass or Teflon
®
containers that have been washed with
soap and water and rinsed with methanol. The container should be capped with
a Teflon-lined cap. If a Teflon cap is not available, aluminum foil rinsed in
methanol may be used as a substitute cap liner.
Table 1 Various PCBs in Soil
Compound
Concentration (ppm) to give a positive result at
1 ppm 5 ppm 10 ppm 50 ppm
1248 1 5 10 50
1016 2 9 20 67
1242 1.2 6 14 50
1254 1.4 4.6 11 28
1260 1.1 4.9 11 38
Biphenyl 2,4,6-trichlorophenyl 1,3-dichlorobenzene
2,4-dicholorophenyl pentachlorophenol 1,4-dichlorobenzene
2,4,5-trichlorphenyl 1,2-dichlorobenzene 1,2,4-trichlorobenzene
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