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c TABLE 7. EXTRACTION AND 24-H DYNAMIC RETENTION EFFICIENCIES FOR VARIOUS <br /> PESTICIDES AND RELATED COMPOUNDS <br /> Sampling Eficiency',%,at <br /> Extraction Efficienc},% 10 ng/m' 100 ng/m' 1,000 ng/m' <br /> Compound mean RSD mean RSD mean RSD mean RSD <br /> n Pro oxer 77.5 71.4 92.0 -- 91.7 22.8 101.0 18.4 <br /> 0 <br /> Resmethrin 95.5 71.4 79.0 -- 100.7 13.1 107.0 4.4 <br /> 'O <br /> Dicofol 57.0 8.5 38.0 25.9 65.0 8.7 69.0 -- <br /> ' Captan 73.0 12.7 56.0 -- 45.5 64.3 84.3 16.3 <br /> `o <br /> Carbaryl 74.0 82.0 102.0 61.0 -- 113.0 6.1 <br /> Malathion 76.5 44.5 108.0 -- 54.0 16.0 77.3 7.6 <br /> 0 <br /> cis-Permethrin 88.7 10.3 101.0 28.5 85.0 26.9 89.0 11.3 <br /> trans-Permethrin 88.7 11.0 67.3 34.8 80.7 56.4 108.3 9.5 <br /> 0 <br /> z Methoxychlor 65.5 4.9 -- -- -- -- 78.5 2.1 <br /> 0 <br /> k Atrazine 75.0 50.5 -- -- 73.0 30.1 83.0 9.5 <br /> O Fol et 1 86.7 11.7 -- -- 78.0 -- 93.0 -- <br /> Aroclor 1260 92.0 14.5 88.0 9.6 85.3 9.9 107.1 13.6 <br /> Z. <br /> f� <br /> a 'Mean values for one spike at 550 ng/plug and two spikes at 5,500 ng/plug. <br /> 'Mean values for three determinations. <br /> 0 <br /> ti <br /> a <br /> b o <br /> m o <br /> ua a. <br /> o C <br /> ' o <br /> 1A Y <br />