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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#: SM980525 Date Analyzed: 06/04/98 <br /> Matrix: Solid Extraction Method: EPA 3050 <br /> Units: m Spiked Sample: Blank S ikc <br /> PARAMETER 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. : 0.0 : 45. : 89 44. : 88 : 1.0 25.0 64-108 : <br /> iArsenic ' 6010 1 <0.50 ' 50. ' 0.0 ' 47. 95 ' 45. ' 89 6.0 ' 25.0 ' 54-116 ' <br /> :Barium : 6010 : <0.50 : 50. : 0.0 : 45. : 90 : 45. : 90 : 0.4 : 25.0 : 61-115 : <br /> :Beryllium 6010 <0.50 50. 0.0 47. 94 47. 95 1.2 25.0 68-110 <br /> 'Cadmium 6010 ' <0.50 50. 0.0 44. 88 44. 88 0.3 25.0 71-102 <br /> :Chromium : 6010 : <0.50 : 50. : 0.0 : 62. : 124 : 53. : 106 : 15.9 : 25.0 : 63-119 : <br /> :Cobalt i 6010 � <0.50 i 50. i 0.0 i 44. i 89 i 44. i 89 i 0.0 i 25.0 i 62-109 � <br /> 'Copper ' 6010 ' <0.50 ' 50. ' 0.0 ' 47. ' 94 ' 47. ' 94 ' 0.4 ' 25.0 ' 47-130 ' <br /> :Lead i 6010 i <0.50 i 50. i 0.0 i 43. i 86 i 43. i 85 i 0.7 i 25.0 i 60-107 i <br /> :Molybdenum i 6010 i <0.50 i 50. i 0.0 i 46. i 91 i 45. i 91 i 0.6 i 25.0 i 50-113 i <br /> 'Nickel 6010 <0.50 50. 0.0 47. 95 45. 90 5.1 25.0 57-120 <br /> :Selenium i 6010 i <0.50 i 50. i 0.0 i 42. i 84 i 44. i 88 i 5.2 i 25.0 i 56-108 i <br /> Silver 6010 <0.50 50. 0.0 44. 87 42. 84 3.3 25.0 56-115 <br /> ;Thallium 6010 <0.50 50. 0.0 44. 88 41. 82 6.7 25.0 60-109 <br /> iVanadium ' 6010 ' <0.50 ' 50. ' 0.0 ' 45. ' 89 ' 45. ' 90 ' 0.4 ' 25.0 ' 54-125 ' <br /> Zinc 6010 <0.50 50. 0.0 47. 94 46. 92 2.1 25.0 60-115 <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 />