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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: AE08481 Sample Date/Time: Monday, April 22, 2002 12:41:41 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE08481.502 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 9.000 61.864 -0.000 -0.01385 123.83 ug/L > Se-1 45 479636.582 1.287 479636.582 ug/L Cr 52 10237.866 2.521 0.005 0.26597 6.92 ug/L Cr 53 1127.081 4.312 0.001 0.28967 16.36 ug/L Mn 55 231742.188 1.319 0.479 16.57222 2.19 ug/L Ni 60 1019.734 2.933 0,002 0.34424 4.67 ug/L Cu 63 6201.845 3.084 0.012 1.08622 4.00 ug/L Cu 65 2948.841 2.409 0.006 1.03482 2.38 ug/L Zn 66 1475.468 0.882 0.008 0.49513 3.49 ug/L Zn 67 499.352 6.066 0.004 1.19844 7.41 ug/L Zn 68 1899.218 4.733 0.014 1.14504 4.97 ug/L > Ge 72 94392.168 1.239 94392.168 ug/L As 75 842.375 7.520 0.008 0.40842 7.45 ug/L Se 77 169.983 10.212 0.000 0.22441 40.58 ug/L Se 82 148.669 8.081 0.000 0.21708 24.92 ug/L Ag 107 175.337 7.444 -0.000 -0.04096 3.33 ug/L in 115 1338704.099 1.354 1338704.099 ug/L Sb 121 486.351 6.889 0,000 0.04974 6.96 ug/L Sb 123 370.909 2.433 0.000 0.04922 1.25 ug/L Ba 135 44359.756 1.465 0.024 15.98865 1.99 ug/L Ba 137 77674.563 1.258 0.041 16.10465 1.21 ug/L Ho 165 1855763.728 0.989 -0.003 ug/L > Tb 159 1879388.776 2.348 1879388.776 ug/L Hg 201 392.679 2.564 0.000 0.25976 0.53 ug/L Hg 202 880.051 3.977 0.000 0.26784 2.49 ug/L TI 205 1116.746 3.422 -0.000 -0.00060 196.15 ug/L Pb 208 6174.543 1.940 0.002 0.11998 2.11 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 113.019 Cr 52 Cr 53 Mn 55

Sample ID: AE08481 Report Date/Time: Monday, April 22,2002 12:43:22 Page 1

NYC-WTC_000040894

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NYC-WTC_000040894Source: NYC Law Department, mirrored locally

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