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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#: SM970804 Date Analyzed: 08/13/97 <br /> Matrix: Solid Extraction Method: EPA 3050 <br /> Units: m Spiked Sari le: D12347 <br /> PARAMETER Method# MB. € SA € SR SP SP SPD SPD RPD € QC LIMITS <br /> m m m mg/kg .' %R img/Kg. %R RPD %R <br /> Antimony 6010 <0.5 i 25. i 0.0 i 21. : 86 i 23. 90 i 4.8 i 25.0 1 50-150 <br /> 'Arsenic ' 6010 ' <0.5 ' 25. ' 7.0 ' 35. ' 113 ' 35. ' 110 ' 2.7 ' 25.0 ' 50-150 <br /> :Barium : 6010 : <0.5 25. : 0.0 : 21. : 82 : 20. : 82 : 1.0 : 25.0 : 50-150 : <br /> :Beryllium 6010 <0.5 25. 0.4 25. 100 24. 96 4.1 25.0 50-150 <br /> 'Cadmium ' 6010 ' <0.5 25. ' 0.0 ' 25. ' 99 25. ' 98 ' 1.0 25.0 ' 50-150 ' <br /> :Chromium : 6010 : <0.5 : 25. : 0.0 : 23. : 93 : 23. : 94 : 0.2 : 25.0 : 50-150 : <br /> Cobalt 6010 <0.5 25 10.0 37. 106 34. 96 9.9 25.0 50-150 <br /> 'Copper ' 6010 ' <0.5 ' 25. ' 30.8 ' 57. ' 105 ' 55. ' 98 ' 6.9 ' 25.0 ' 50-150 ' <br /> :Lead i 6010 i <0.5 : 25. i 0.0 : 23. i 91 : 22. i 89 i 2.6 i 25.0 i 50-150 <br /> :Molybdenum i 6010 i <0.5 � 25. � 0.3 i 23. i 90 i 23. � 91 � 1.1 � 25.0 � 50-150 i <br /> (Nickel ' 6010 1 <0.5 1 25. ' 0.0 1 27. 1 109 1 22. ' 88 ' 20.5 ' 25.0 50-150 ' <br /> :Selenium i 6010 i <0.5 i 25. : 0.0 i 22. i 88 i 22. : 86 : 2.3 i 25.0 i 50-150 : <br /> Silver 6010 <0.5 na na na na na na na 25.0 50-150 <br /> Thallium 6010 <0.5 25. 0.0 24. 94 24. 96 11.3 25.0 f 50-150 <br /> iVanadium 1 6010 i <0.5 1 25. ' 0.0 1 22. 1 86 1 21. ' 86 1 0.5 1 25.0 ' 50-150 i <br /> 6010 <0.5 25. 0.0 21. 86 21. 82 4.3 25.0 <br /> :Zinc i i i i i i i i : : i 50-150 : <br /> Note: LCS and L(-SD results reported for the following Parameters: <br /> Antimony Lead vanadium <br /> Barium Nickel Zinc <br /> Chromium Thallium <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 />