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ICPMS daily performance check report, April 23, 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_000040976–000041063

Folder label: “ICPMS 4/23/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE08839 Sample Date/Time: Tuesday, April 23, 2002 10:22:35 Sample Type: Spike -1 Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE08839.666 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 19602.647 2.040 0.041 55.34007 2.26 ug/L > Se-1 45 477443.452 1.420 477443.452 ug/L Cr 52 437374.131 2.388 0.900 49.35794 1.51 ug/L Cr 53 51861.051 1.700 0.107 49.39934 1.57 ug/L Mn 55 913360.415 1.262 1.911 67.50916 0.34 ug/L Ni 60 106323.004 1.875 0.222 49.36373 1.14 ug/L Cu 63 268381.496 1.890 0.561 54.79260 0.47 ug/L Cu 65 132911.473 2.068 0.278 54.34193 0.76 ug/L Zn 66 84666.135 2.736 0.886 53.22575 1.77 ug/L Zn 67 15300.351 0.218 0.160 52.52166 0.94 ug/L Zn 68 64404.029 1.976 0.674 54.13137 0.95 ug/L Ge 72 94688.550 1.078 94688.550 ug/L As 75 96432.491 1.195 1.018 51.88430 0.91 ug/L Se 77 9556.141 0.485 0.100 56.02326 1.41 ug/L Se 82 11390.913 1.005 0.119 55.13853 0.22 ug/L Ag 107 467895.616 1.584 0.369 48.59700 1.10 ug/L Cd 111 127273.607 1.072 0.100 50.26894 0.30 ug/L Cd 114 299501.208 2.492 0.236 50.29737 1.61 ug/L > In 115 1267652.445 1.337 1267652.445 ug/L Sb 121 438366.768 1.158 0.346 50.85583 0.69 ug/L Sb 123 337044.794 1.960 0.266 50.45629 0.63 ug/L Ba 135 167842.017 1.114 0.095 64.62815 1.05 ug/L Ba 137 293758.333 1.157 0.166 64.59149 0.99 ug/L > Tb 159 1772699.080 1.782 1772699.080 ug/L Ho 165 1749511.011 1.426 -0.005 ug/L Hg 201 4582.200 1.343 0.003 4.05028 0.45 ug/L Hg 202 10426.081 1.973 0.006 3.94882 1.56 ug/L Tl 205 1128672.233 1.511 0.636 47.44528 1.36 ug/L Pb 208 1525779.632 1.142 0.860 47.79725 0.83 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 110.689 > Sc-1 45 102.818 Cr 52 98.175

Sample ID: AE08839 Report Date/Time: Tuesday, April 23,2002 10:25:08 Page 1

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NYC-WTC_000041016Source: NYC Law Department, mirrored locally

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