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- - A Commg Cumpanv <br /> DUPLICATE CONTROL SAMPLE REPORT <br /> Semivolatile Organics by GC/MS <br /> f Concentration Accuracy Precision <br /> Analyte Spiked Measured Average(%) (RPD) <br /> DCS1 DCS2 AVG DCS Limits DCS Limit <br /> Category: 8270-S <br /> Matrix: SOIL <br /> QC Lot: 10 FEB 92-B <br /> a Concentration Units: ug/kg <br /> Phenol 6670 4870 4970 4920 74 22-110 2.0 25 <br /> 2-Chlorophenol 6670 4670 4680 4680 70 40-116 0.2 22 <br /> 1,4-Dichlorobenzene 3330 2160 2150 2160 65 39- 99 0.5 22 <br /> N-Nitroso-di- <br /> n-propylamine 3330 2190 2190 2190 66 38-107 0.0 21 <br /> 1,2,4-Trichlorobenzene 3330 2220 2270 2240 67 42-108 2.2 21 <br /> 4-Chloro-3-methylphenol 6670 48:40 4880 4860 73 45-108 0.8 17 <br /> Acenaphthene 3330 2240 2230 2240 67 41-102 0.4 16 <br /> £ 2,4-Dinitrotoluene 3330 23'00 2300 2300 69 46-103 0.0 16 <br /> 4-Nitrophenol 6670 47.90 4860 4820 72 11-114 1.5 50 <br /> Pentachlorophenol 6670 5500 5460 5480 82 17-109 0.7 47 <br /> 4 Pyrene 3330 28',10 2830 2820 85. 31-130 0.7 23 <br /> { <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> I <br /> I <br /> _ I <br /> I <br /> k <br /> i <br /> I <br /> I <br /> I <br /> s <br /> a , <br /> 3 j <br />