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nterIt Analytical Lah%, Inn 525 Del Rey Avenue, Suite E <br /> Sunnyvale, CA 94086 <br /> QUALITY CON'T'ROL RESULTS SUMMARY <br /> METHOD ICP <br /> QC Batch# SM970919 Date Analyzed 10/01/97 <br /> Matrix Solid Extraction Method EPA 3050 <br /> Units m Ik Spiked Sample D15145 <br /> PARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> mglkg mg/kg mg/kg mg/kg %R mg/Kg, %R RPD % <br /> (Antimony ' 6010 ' <0 50 I 25 : 00 ' 21 I 82 : 21 1 83 : 1 0 I 250 I 50-150 ' <br /> 1 I I 1 1 I 1 1 1 1 I I I <br /> (Arsenic 1 6010 1 <0 50 1 25 t 61 1 34 1 111 1 28 1 87 1 244 : 250 I 50-150 + <br /> , i 6010 I <0 50 <br /> Hartum 1 1 25 1 00 1 20 1 82 1 21 1 83 1 13 1 250 1 50.150 <br /> E <br /> Beryllium 6010 <0 50 25 03 22 86 22 85 12 250 i 50.150 <br /> :Cadmium 1 6010 1 -,050 I 25 I 00 I 22 I 89 I 21 I 84 1 5 8 I 250 I 50-150 1 <br /> 1 I I 1 I 1 1 1 1 1 I 1 r <br /> :Chromium I 6010 t <0 50 1 25 1 470 1 65 1 71 1 63 r 65 1 88 1 250 1 50-150 : <br /> 1 t 1 1 1 1 1 1 1 I 1 1 I <br /> (Cobalt 1 6010 1 <0 50 1 25 I 85 E 32 1 92 I 31 t 89 1 33 1 250 I 50-150 I <br /> :Copper ' 6010 ' <0 50 ' 25 I 27 1 I 46 I 74 I 43 : 62 , 178 I 250 I 50-150 ' <br /> (Lead 1 6010 1 <0 50 1 25 1 00 1 23 1 92 1 23 1 92 1 07 1 250 1 50-150 t <br /> :Molybdenum I 1 1 1 1 1 1 i 1 1 1 1 <br /> 1 ly i 6010 I <0 50 1 25 I 35 I 24 1 81 1 21 1 69 1 160 1 250 1 50.150 <br /> f <br /> ,Nickel ' 6010 : <0 50 : 25 : 39 8 : 61 : 84 : 62 : 90 , 69 : 250 : 50-150 : <br /> r 1 1 1 I 1 1 1 1 1 1 T <br /> ISelenmm 1 6010 1 <0 50 I 25 I 00 1 18 I 72 I 19 : 76 1 so I 250 I 50.150 <br /> :Silver i 6010 I <0 50 1 25 : 02 I 17 I 67 1 15 r 60 1 11 0 1 2,50 I 50-150 1 <br /> : I 1 1 1 1 1 1 1 I 1 : <br /> IThallmm I 6010 1 <0 50 1 25 1 00 I 20 1 78 I 20 i 78 1 01 1 250 1 50.150 I <br /> 1 <br /> :Vanadium ' 6010 1 <0 50 I 25 : 440 I 70 : 105 , 73 : 114 I 82 : 250 : 50-150 : <br /> I 1 1 1 1 i 1 i 1 1 I 1 <br /> IZmc 1 6010 1 <0 50 1 25 1 45 8 1 66 r 82 i 66 a 80 1 25 1 250 : 50-150 : <br /> 1 I 1 1 1 t 1 1 1 <br /> LCS and LCSD results reportedfor the following Parameter <br /> Antimony Selenium <br /> Lead Thallium <br /> Acceptable LCS and LCSD results are reported when matrix interferences cause MS and MSD results to fall outside <br /> established QC hm:ts <br /> Definition of Terms <br /> na Not Analyzed in QC batch <br /> MB Method Blank <br /> SA Spike Added <br /> SR Sample Result <br /> SP Spike Result <br /> SP(%R) Spike % Recovery _ <br /> SPD Spike Duplicate Result <br /> SPD(%R) Spike Duplicate % Recovery <br />