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ICPMS daily performance check report, April 10, 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_000040452–000040596

Folder label: “ICPMS 4/10/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07512 Sample Date/Time: Wednesday, April 10, 2002 11:10:23 Sample Type: Spike -1 Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07512.444 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 24768.611 0.877 0.050 54.13812 0.54 ug/L Se-1 45 496839.699 1.230 496839.699 ug/L Cr 52 463146.638 1.014 0.919 50.04084 1.22 ug/L Cr 53 55031.952 0.647 0.109 50.46667 1.69 ug/L Mn 55 1053900.831 2.109 2.116 71.89232 2.74 ug/L Ni 60 112283.755 1.764 0.226 49.13088 2.42 ug/L Cu 63 305148.105 2.656 0.613 57.93662 3.56 ug/L Cu 65 149079.531 1.945 0.300 58.04703 2.66 ug/L Zn 66 91729.404 0.971 0.927 53.57625 1.94 ug/L Zn 67 16209.274 2.816 0.164 53.41446 3.74 ug/L Zn 68 67151.487 1.775 0.679 53.30113 1.43 ug/L > Ge 72 98070.174 1.309 98070.174 ug/L As 75 104479.808 2.239 1.062 53.01036 0.97 ug/L Se 77 9393.612 1.117 0.094 56.11321 0.85 ug/L Se 82 12725.696 1.603 0.128 56.42689 1.55 ug/L Ag 107 519120.214 0.491 0.385 47.62129 0.26 ug/L In 115 1344598.777 0.363 1344598.777 ug/L Sb 121 474908.346 0.854 0.353 52.16295 0.92 ug/L Sb 123 365379.499 1.086 0.272 51.66779 0.79 ug/L Ba 135 174050.900 1.192 0.096 64.06334 0.75 ug/L Ba 137 300525.383 1.636 0.165 63.45853 1.11 ug/L Ho 165 1831163.011 1.380 0.148 ug/L Tb 159 1816666.407 0.624 1816666.407 ug/L TI 205 1233368.895 1.852 0.678 49.23842 1.45 ug/L Pb 208 1666819.214 0.488 0.916 49.13618 0.24 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff Be 9 108.278 > Sc-1 45 88.317 Cr 52 99.467 Cr 53 100.055 Mn 55 99.602 Ni 60 97.554 Cu 63 99.029

Sample ID: AE07512 Report Date/Time: Wednesday, April 10, 2002 11:11:58 Page 1

NYC-WTC_000040503

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NYC-WTC_000040503Source: NYC Law Department, mirrored locally

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