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TABLE 5. SAMPLING EFFICIENCIES FOR CARBAMATES,UREAS, TRIAZINES,AND PYRETHRINS <br /> c Static Recovery,% Retention Efficiency,% Sampling Efficiency,% <br /> Spike Level, <br /> Compound µg/plug mean RSDP n mean RSD n mean RSD n <br /> Carbamates: <br /> Pro oxur 5 61.4 10 6 77.6 37 6 96.7 11 6 <br /> Carbofuran 15 55.3 12 6 64.2 46 6 87.2 14 6 <br /> Bendicarb 50 57.3 11 6 69.8 43 6 62.1 14 6 <br /> Mexacarbate 10 62.8 19 6 62.7 41 6 89.8 14 6 <br /> Carbaryl 100 56.6 14 6 63.6 53 6 0 13 6 <br /> Ureas: <br /> Monuron 19 87.0 6 6 91.2 6 5 0 <br /> Diuron 20 84.1 8 6 90.0 2 5 0 <br /> o Linuron 20 86.7 8 6 92.5 4 5 0 <br /> Terbuthiuron 18 85.0 8 6 88.8 8 5 0 <br /> 0 <br /> Fluometuron 20 91.4 10 6 101 3 5 0 <br /> y <br /> k Chlortoluron 20 86.2 11 6 92.0 7 5 0 <br /> Triazines: <br /> � Simazine ]0 103 6 5 101 9 6 0 <br /> Atrazine 10 104 7 5 98.9 7 6 0 <br /> Pro azine 10 105 11 5 99.9 14 6 0 <br /> �b <br /> Pyrethrins: <br /> P rethrin I (9.7) 90'.5 10 6 95.6 22 5 0 <br /> Pyrethrin 11 (6.1) 8815 11 6 69.9 29 5 0 <br /> Allethrin 25 69.2 9 5 58.3 12 6 0 <br /> d-trans-Allethrin 25 76.8 9 6 74.4 9 5 0 <br /> Dicroto hos 25 72.0 22 6 71.7 8 5 0 <br /> Resmethrin 25 76.5 14 6 66.7 14 6 0 c <br /> Fenvalerate 25 87.9 3 6 57.2 20 3 0 y <br /> o O <br /> o <br /> w' <br />