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1 <br /> 11 <br /> 410ntech Analytical Labs, Inc 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD ICP <br /> QC Batch# SM990416 Date Analyzed 04/23/99 <br /> Matrix Solid Extraction Method EPA 3050 <br /> Units mg1kg Spiked Sample Blank Spike <br /> PARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> mg/kg mg/kg mg/kg mg/kg %R mgXg %R RPD °/4R <br /> ;Antimony 1 6010 1 <1 0 1 50 ; na ; na na na na : na 1 250 1 69-100 ; <br /> 1 1 1 1 1 1 1 1 1 1 I 1 1 <br /> :Arsenic 1 6010 : <1 0 1 50 1 00 1 45 1 90 1 45 : 90 1 0 1 : 250 : 64-106 I <br /> 1 1 1 1 1 1 1 1 1 1 1 1 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 + <br /> :Barium 1 6010 1 <1 0 50 + na + na 1 na 1 na 1 na 1 na 1 25 0 75-112 1 <br /> 1 <br /> 1 1 1 1 <br /> 'Beryllium 1 6010 1 <1 0 : 50 1 na �: na I na ' na ' na 1 na : 250 : 70-110 : <br /> 1 1 1 1 1 1 1 1 1 1 1 1 1 <br /> 'Cadmium I 6010 : <1 0 : 50 : 00 : 43 1 86 I 44 1 87 1 1 8 I 250 : 70-100 : <br /> 1 1 1 1 1 1 1 , 1 1 <br /> :Chromium 1 6010 1 <10 1 50 I 00 1 45 1 89 1 45 1 90 1 12 1 250 I 67-112 1 <br /> 1 1 1 1 1 1 1 1 1 1 + 1 1 <br /> .Cobalt 1 6010 : <I 0 : 50 : na : na : na I na I na 1 na 1 250 1 66-110 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 k <br /> 'Copper60L0 I <I 0 1 50 1 00 I 45 : 90 45 1 91 06 1 250 1 73-110 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> 1 <br /> :Lead : 6010 ' <1 0 I 50 1 00 I 42 : 83 : 43 1 85 1 20 ' 250 : 63-1 t5 : <br /> 1 1 1 1 1 1 1 1 1 1 1 1 1 <br /> :Molybdenum : 6010 1 <1 0 1 50 1 na I na : na : na : na : na 1 250 : 69-112 1 <br /> 1 1 1 1 1 1 1 1 1 1 I 1 1 <br /> 1 1 1 1 1 1 1 1 1 1 I 1 1 <br /> INickel I 6010 : <1 0 : 50 : 00 : 44 1 89 ' 45 ' 89 1 06 1 250 1 73-112 1 <br /> 1 1 1 1 1 1 1 1 1 1 1 1 1 <br /> :Selenium ' ' 250 ' 65-104 ' <br /> 6010 , <10 , 50 1 na 1 na 1 na 1 na 1 na 1 na 1 1 <br /> 61hal1r,urn <br /> 11111111I1lve5010 <L 0 50 1 na 1 na na na 1 na 1 na 1 250 1 70-113 1 6010 I <1 0 : 50 : na I na 1 na : na I na : na : 250 1 69-106 : <br /> 1 1 1 1 1 1 1 1 1 k 1 1 <br /> :Vanadium I 6010 I <1 0 : 50 : na : na I na I na 1 na I na 1 250 I 67-115 I <br /> 1 1 1 1 1 1 1 1 1 1 k 1 + <br /> 1 1 1 1 1 1 , 1 1 1 1 1 1 <br /> 'Zinc 1 6010 1 <1 0 1 50 1 00 1 42 1 85 1 43 1 86 : 1 6 : 250 I 68-104 : <br /> 1 <br /> Note LCS and LCSD results reported fur the following Parameters <br /> All <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 /> 0 <br />