EPA Method 4015
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EPA Method 4015:
SCREENING FOR 2,4-DICHLOROPHENOXYACETIC ACID BY IMMUNOASSAY
Test kits are commercially available for this method. The manufacturer's directions should be followed.
Method 4015 is a procedure for screening soils and aqueous matrices to determine whether 2,4-dichlorophenoxyacetic acid (2,4-D) (CAS Registry 94-75-7) is likely to be present at concentrations above 0.1, 0.5, 1.0 or 5.0 mg/kg in soil, and in aqueous matrices above 10 mg/L (the toxicity characteristic regulatory action level) and 10 ?g/L (ground water monitoring). Method 4015 provides an estimate for the concentration of 2,4-D by comparison against standards.
SW-846 Ch 4.4
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