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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: AE07767 Sample Date/Time: Wednesday, April 10, 2002 12:33:50 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07767.462 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 10.667 30.136 0.000 0.00520 147.99 ug/L > Se-1 45 461273.819 0.953 461273.819 ug/L Cr 52 9691.927 0.942 0.007 0.39704 5.39 ug/L Cr 53 1208.092 4.774 0.001 0.49058 12.92 ug/L Mn 55 214781.943 9.876 0.460 15.63814 9.72 ug/L Ni 60 766.373 0.670 0.002 0.34977 0.82 ug/L Cu 63 40239.951 1.887 0.086 8.12373 0.95 ug/L Cu 65 19560.884 0.154 0.042 8.17263 0.82 ug/L Zn 66 5330.616 0.440 0.050 2.89296 1.99 ug/L Zn 67 1001.732 4.398 0.009 3.02750 4.63 ug/L Zn 68 4411.448 2.424 0.042 3.30214 2.19 ug/L > Ge 72 91387.336 1.283 91387.336 ug/L As 75 896.889 6.202 0.007 0.32991 9.71 ug/L Se 77 170.337 10.894 0.000 0.28777 46.59 ug/L Se 82 162.003 7.484 -0.000 -0.11330 53.41 ug/L Ag 107 1113.080 9.185 0.000 0.03716 26.92 ug/L in 115 1251588.063 0.762 1251588.063 ug/L Sb 121 958.727 6.058 0.001 0.10840 5.96 ug/L Sb 123 749.603 10.450 0.001 0.10952 10.52 ug/L Ba 135 39151.197 1.708 0.023 15.08102 0.97 ug/L Ba 137 68726.833 0.650 0.040 15.19224 1.40 ug/L Ho 165 1726608.580 1.200 0.136 ug/L > Tb 159 1734101.572 1.010 1734101.572 ug/L TI 205 570.024 2.701 -0.000 -0.00915 6.58 ug/L Pb 208 6716.700 1.188 0.003 0.15075 1.62 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 81.995 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07767 Report Date/Time: Wednesday, April 10, 200212:35:24 Page 1

NYC-WTC_000040539

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NYC-WTC_000040539Source: NYC Law Department, mirrored locally

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