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r . <br /> iiivanterra <br /> Environmental <br /> services <br /> DUPLICATE CONTROL SAMPLE REPORT <br /> Semi vol ati 1 e Organics 'by GC/MS <br /> Project: 092398 F <br /> LCategory: 8270-S Acid y /Base and Neutrals b GC MS. <br /> Testod : 8270CPL -TCL-S Method: 8270 <br /> LMatrix: SOIL Concentration Units: ug/kg <br /> QC Lot: 26 MAR 97-IIA Analyzed Date: 28 MAR 97 Time: 20:06 ; <br /> ---------Concentration-------- Accuracy �'- Precision ; <br /> Analyte Spiked -------Measured----.- M (RPD) <br /> DCS1 DCS2 *DCS1 DCS2 Limits DCS Limit <br /> Phenol 2500 1940 1840 78 74 40-119 5.3 17 <br /> L2-ChloropPhenol 2500 1940 1920 78 '77 39-119 1.0 18 <br /> 1,4-Dichlorobenzene, 1660 1200 1180 72 71 ' -36-111 1.7 .19 p <br /> N-Nitroso-di- <br /> n-propylamine 1660 1260 1250 76 75 35-117 0.80 17 <br /> 1,2,4 ; <br /> Trichlorobenzene 1660 1270 1270 77 77 36-107 0.0 17 <br /> 4-Chloro-3- ' <br /> Lmethylphenol 2500 1990 2060 80 82 41-122 3.5 13 <br /> Acenaphthene 1660 1330 1330 80 80 36-111 0.0 21 <br /> 2,4-Dinitrotoluene 1660 1370 1400 83 84 43-114 2.2 17 <br /> 4-NitroPPhenol 2500 1670 1850 . 67 - 74 45-130 10 18 <br /> Pentachlorophenol 1 2500 1740 2070 70 83 39-119 17 26 <br /> Pyrene ,' 1660 1360 1450 82 87 35-142 6.4 15 <br /> ---------Concentration ----- -- <br /> L Surrogate `Spiked ------Measured----- Accuracy(%) <br /> DCS1 DCS2 DCS1 DCS2 Limits <br /> LNitrobenzene-d5 50 41 40 81 79 23-120 <br /> 2-Fluorobiphenyl 50 42 42 83 84 30-115 <br /> Terphenyl -d14 50 44 46 88 92 18-137 <br /> LPhenol -d5 75 60 59 80 79 24-113 <br /> 2-Fluorophenol 75 63 60 85 81 25-121 <br /> 2,4,6-Tribromophenol 75 65 66 87 89 19-122 <br /> Calculations are performed before rounding to avoid round-off.-errors in calculated results.- <br />