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ICPMS daily performance check report, April 15, 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_000040648–000040698

Folder label: “ICPMS 4/15/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: LRB Sample Date/Time: Monday, April 15, 2002 09:52:34 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\LRB.496 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 7.333 56.773 -0.000 -0.00441 209.03 ug/L > Se-1 45 580144.610 1.999 580144.610 ug/L Cr 52 8217.795 0.707 -0.002 -0.11061 19.34 ug/L Cr 53 649.696 0.583 -0.001 -0.40736 1.97 ug/L Mn 55 1442.796 3.231 -0.001 -0.03916 2.77 ug/L Ni 60 59.001 13.238 -0.000 -0.00303 99.59 ug/L Cu 63 318.342 7.824 -0.000 -0.01047 29.39 ug/L Cu 65 164.670 3.951 -0.000 -0.01394 13.17 ug/L Zn 66 560.356 1.858 -0.001 -0.06705 8.56 ug/L Zn 67 132.669 9.574 -0.000 -0.11849 31.27 ug/L Zn 68 445.015 3.899 -0.001 -0.07035 14.41 ug/L > Ge 72 109179.469 0.713 109179.469 ug/L As 75 34.437 132.775 0.000 0.00223 944.47 ug/L Se 77 47.770 117.850 0.000 0.15028 122.17 ug/L Se 82 112.668 2.050 -0.000 -0.03527 21.04 ug/L Ag 107 1534.812 5.045 0.000 0.04061 21.17 ug/L Cd 111 1203.552 3.402 -0.000 -0.03083 18.01 ug/L Cd 114 113.455 6.552 -0.000 -0.00326 27.39 ug/L > In 115 1534481.370 2.027 1534481.370 ug/L Sb 121 406.013 13.685 0.000 0.03424 13.60 ug/L Sb 123 328.870 14.115 0.000 0.03736 14.08 ug/L Ba 135 58.667 3.548 -0.000 -0.00235 23.91 ug/L Ba 137 96.335 11.434 -0.000 -0.00166 128.49 ug/L > Tb 159 1976168.067 0.637 1976168.067 ug/L Ho 165 1856251.020 7.584 0.083 ug/L TI 205 2067.923 5.097 -0.000 -0.00364 115.55 ug/L Pb 208 1894.430 3.726 -0.000 -0.00067 322.55 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 98.642 Cr 52 Cr 53 ■ Mn 55

Sample ID: LRB Report Date/Time: Monday, April 15, 2002 09:54:56 Page 1

NYC-WTC_000040665

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NYC-WTC_000040665Source: NYC Law Department, mirrored locally

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