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T <br /> l� <br /> f <br /> ntech Analytical Labs,Inc 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> Laboratory Control Spikes <br /> METHOD EPA 6010 <br /> Date Analyzed 08/25/00 <br /> QC Batch 0 SM000816 Date Digested 08!24100 <br /> Matrix Solid Digestion Method EPA 3050 <br /> Units mg/kg Sulked Sample Blank Spike <br /> ' PARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> m m m m %R mg/kg %R RPD %R <br /> !Antimony I 6010 <1 D 50 e 0 0 49 j 98 48 95 2 6 1 25 0 1 75-125 <br /> ;Arsenic 6010 <1 0 50 00 48 ; 96 1 49 1 98 16 1 25 0 1 75-125 <br /> Banum 6010 <1 0 50 0 0 50 100 50 101 08 250 75-125 <br /> ;Beryllium 6010 <1 0 50 0 0 48 95 41 96 01 21 1) 1 75-125 <br /> Cadmium 6010 1 <1 0 50 00 1 50 1 101 1 50 3 101 0 1 250 75-125 <br /> 'Chromium 6010 <1 0 50 00 52 1 104 1 52 104 06 250 75-125 <br /> 'Cobalt ' 6010 ' <1 0 50 ' 0 D 1 51 101 1 51 102 07 2] 0 75-125 <br /> Copper 6010 <1 0 50 00 51 101 51 102 0 8 2S 0 75-125 <br /> ;Lead 6010 1 <1 0 50 1 00 1 50 100 1, 51 102 19 25 0 75-125 <br /> 'Motvbdenum 1 6010 1 <1 0 50 0 0 1 51 1 102 1 52 1 103 1 1 1 1 25 0 75-125 ' <br /> 1 1 <br /> ;Nickel 1 6010 1 <10 1 50 1 00 1 48 1 96 1 48 97 13 1 250 1 75-125 <br /> 1 Selenium. 6010 1 <1 0 50 1 00 1 51 1 102 50 1 99 1 25 1 25 0 ; 75-125 ; <br /> ;Silver 6010 1 <1 0 1 50 i 00 1 59 1 118 i 59 1 118 1 07 1 250 75-125 <br /> Fliallium 6010 1 <1 0 50 00 53 1 105 1 53 1 106 1 09 1 250 1 75-125 ' <br /> "Vanadium 1 6010 <1 0 ' 10 1 10 47 1 93 41 1 94 05 1 150 ' 75-125 <br /> 1Zinc 6010 <1 0 50 1 00 1 52 1 105 1 53 1 105 04 250 75-125 <br /> 1 1 <br /> 1 <br /> ' Definition of Serms <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 /> � I <br />