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i <br /> iI � <br /> C Q'Iluanterra <br /> �r Environmental <br /> Services <br /> �ATRIX SPIKE/MATRIX SPIKE DUPLICATE QC REPORT <br /> latile Organics b GC <br /> Project: 092398 y <br /> L <br /> ategory: 602-A Aromatic Volatile Organics <br /> 'rest: 8020-BTX-A Method: 8020 <br /> Matrix: AQUEOUS <br /> -Lmple. 092397-0019 <br /> Run: 25 MAR 97-40A <br /> its: u <br /> 9/L <br /> ---- Concentration ----- <br /> L Sample MS MSD Spiked %Recovery Control RPD <br /> Analyte Result Result Result MS/MSD MS MSD Limits %RPD Limit <br /> Ll <br /> nzene ND 8.1 8.4 10 81 84 39-150 3.4 50 <br /> uene 0'!51 8.6 8.8 <br /> 10 81 83 46-148 2.2 25 <br /> Ethylbenzene ND 9.7 9.5 10 97 95 32-160 2.2 35 <br /> Renes (total) ND 27 26 30 89 88 65-13'5 0.68 35 <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L <br /> = Not Detected <br /> Lilculations are performed before rounding to avoid round-off errors in calculated results. <br /> I <br /> L <br />