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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD: ICP <br /> QC Batch#: SM981112 Date Analyzed: 11/16/98 <br /> Matrix: Solid Extraction Method: EPA 3050 <br /> Units: m Spiked Sample: Blank Spike <br /> ARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> m ': m m m € %R €m %R RPD %R <br /> ,Antimony 6010 , <0.50 50. 11 na , na . na na i na , na , 25.0 , 70-102 <br /> iArsenic i 6010 1 <0.50 1 50. 1 na i na i na i na i na i na 1 25.0 61-113 i <br /> 'Barium 6010 <0.50 50. na na i na na i na i na i 25.0 i 73-110 i <br /> Beryllium 6010 <0.50 50. na na na na na na 25.0 t 76-101 <br /> ,Cadmium 6010 1 <0.50 50. na na I na I na I na i na 1 25.0 1 73-100 <br /> ,'Chromium i 6010 i <0.50 1 50. i na i na i na l na i na i na i 25.0 i 67-108 i <br /> ,Cobalt , 6010 , <0.50 , 50. , na i na ,,. na ,' na , na , na , 25.0 , 74-102 <br /> 'Copper t 6010 <0.50 1 50. t na na na _na na I na + 25.0 64119 <br /> , 62-116Lead 1 6010 <0,50 i 50. i 0.0 i 50. i l0I i 49. 98 2.9 i 25.0 ' <br /> i <br /> ,Manganese 6010 i <0.50 , 50. na na , na , na , na , na , 25.0 62-116 , <br /> 'Molybdenum 6010 <0.50 50. na na na na na na 25.0 1 49-119 <br /> iNickel i 6010 i <0.50 50. 1 na i na i na i na i na i na 1 25.0 i 70-121 i <br /> Selenium 6010 <0.50 50. na na na na na na 25.0 53-126 <br /> (Silver 6010 <0.50 50. na na na na na na 1 25.0 66-109 <br /> iThallium i 6010 i <0.50 1 50. 1 na i na i na i na i na i na 1 25.0 1 50-121 i <br /> :Vanadium 6010 <0.50 50. i na , na r na na i na na i 25.0 62-133 <br /> lZinc 6010 <0.50 50. na na na na na na 25.0 67-113 <br /> Note: LCS and LCSD results reported for the following Parameters: <br /> All <br /> Acceptable LCS and LCSD results are reported when matrix interferences cause MS and MSD results to fall outside <br /> established QC limits. <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 />