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AN/ EIV Inc <br />' Analytical& Environmental Chemistry <br /> LABORATORY CONTROL SAMPLES <br />' Method VOLATILE AROMATICS AND TPH AS GASOLINE BY GC/PID <br /> Date Aquired 01/07/00 <br /> Expressed as mass(ng) <br />' Amount Amount LCS %Rec <br /> Analyte Added Found Rec Limns <br /> Methyl-tent-butyl Ether 40 42 104% 80-130 <br /> Benzene 20 20 102% 85-120 <br /> Toluene 20 21 106% 85-920 <br /> Ethylbenzene 20 20 102% 85-120 <br /> m,p-Xylenes 20 20 100% 85-120 <br /> o-Xylene 20 21 106% 85-120 <br /> TPH-Gasoline 1,250 1,220 98% 65-140 <br /> Surrogates LCS-8020M Batch ID 0107-04 <br /> a,a,a-TFT-FID 105% 60-130 <br /> 4-BFB-FID 109% 55-150 <br /> 4-BFB-PID 104% 65-140 J <br /> Surrogates LCS-GASOLINE Batch ID 0107-04 <br /> a,a,a-TFT-FID 105% 60-130 <br /> 4-BFB-FID 109% 55-150 <br /> 4-BFB-PID 104% 65-140 <br /> =Values outside of QC limits <br /> LCS Recovery 0 out of 7 outside limits <br /> 1 <br /> ® i <br /> 1 <br /> "7-L L-07-- - <br /> L <br /> rcamao <br /> 1 � <br /> ® m LJn <br />' 455 RESERVATION ROAD, SUITE G 0 MARINA, CA 93933 0 (831) 883-0123 0 FAX(831) 883-0122 <br /> A recyrled paper QC-LCS <br />