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ICPMS daily performance check report, April 22, 2002

Machine-extracted title · confidence 95%

Daily instrument performance verification log for ICPMS analysis including intensity and standard deviation data for multiple elements.

NYC-WTC_000040871–000040923

Folder label: “ICPMS 4/22/01

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: CCV STD1 30PPBAND2PPB Sample Date/Time: Monday, April 22, 2002 13:52:51 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD1 30 PPB AND 2 PPB.515 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit Be 9 11237.387 1.002 0.023 34.12515 0.74 ug/L > Se-1 45 482317.068 1.607 482317.068 ug/L Cr 52 272689.565 1.429 0.549 29.58410 1.90 ug/L Cr 53 31862.725 0.345 0.064 28.81212 1.97 ug/L Mn 55 419056.825 0.926 0.865 29.90940 0.72 ug/L Ni 60 66012.799 0.353 0.136 28.31740 1.33 ug/L Cu 63 150835.233 0.754 0.312 28.43287 0.97 ug/L Cu 65 74380.239 2.458 0.154 28.30572 0.92 ug/L Zn 66 47978.430 1.205 0.513 30.69266 0.67 ug/L Zn 67 8601.821 1.430 0.092 30.00596 0.78 ug/L Zn 68 35950.306 0.957 0.384 30.63985 0.63 ug/L Ge 72 92224.386 1.072 92224.386 ug/L As 75 55356.835 0.744 0.600 29.92730 1.10 ug/L Se 77 5319.253 1.030 0.056 31.41915 2.13 ug/L Se 82 6267.556 0.849 0.067 30.74894 1.94 ug/L Ag 107 308793.558 1.412 0.242 31.31817 1.79 ug/L In 115 1273660.575 0.525 1273660.575 ug/L Sb 121 256955.212 0.902 0.202 30.46555 1.03 ug/L Sb 123 197278.100 0.988 0.155 30.16030 0.83 ug/L Ba 135 79502.275 1.141 0.044 30.16613 0.03 ug/L Ba 137 139817.623 1.881 0.078 30.51546 0.96 ug/L Ho 165 1749004.123 0.852 -0.012 ug/L Tb 159 1786243.609 1.126 1786243.609 ug/L Hg 201 2403.342 2.092 0.001 1.98860 1.33 ug/L Hg 202 5491.046. 1.157 0.003 2.04153 1.12 ug/L TI 205 724344.688 1.562 0.405 29.54940 0.74 ug/L Pb 208 980328.167 0.430 0.548 29.67368 1.08 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 113.651 Cr 52 Cr 53 Mn 55

Sample ID: CCV STD1 30 PPB AND 2 PPB Report Date/Time: Monday, April 22,2002 13:55:03 Page 1

NYC-WTC_000040920

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