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BTEX MATRIX SPIKE RESULTS <br /> Method 8020 <br /> Sample ID <br /> Lab Name Analytical Technologies, Inc SB-4-20' <br /> Client Name Ryan-Murphy, Inc Date Analyzed 10/21/93 <br /> Lab Sample ID 93-10-126-07 Sample Matrix- Soil <br /> Spike Sample MS MS <br /> Added Concentration Concentration Percent <br /> Analyte (ug/kg) (ug/kg) (ug/kg) Recovery <br /> Benzene 500 ND 484 97 <br />' Toluene 500 ND 472 94 <br /> Ethyl Benzene 500 ND 414 83 <br /> Xylenes 1500 ND 1270 85 <br /> Spike MSD MSD <br /> Added Concentration Percent <br /> Analyte (ug/kg) (ug/kg) Recovery RPD <br /> Benzene 500 512 102 6 <br /> Toluene 500 507 101 7 <br /> Ethyl Benzene 500 435 87 5 <br /> 1 Xylenes 1500 1440 96 13 ►` <br /> ND =Not Detected '+ <br />