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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE08014 Sample Date/Time: Tuesday, April 16,2002 12:55:49 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\newyork cit\AE0801 4.575 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 8.000 33.072 -0.000 -0.00938 74.85 ug/L > Se-1 45 479864.204 2.271 479864.204 ug/L Cr 52 9365.916 0.920 0.003 0.13282 15.84 ug/L Cr 53 2305.982 1.758 0.003 1.51843 3.85 ug/L Mn 55 976950.461 2.254 2.035 66.31301 4.49 ug/L Ni 60 4681.590 7.367 0.010 1.98439 8.55 ug/L Cu 63 34317.330 0.906 0.071 6.71827 3.09 ug/L Cu 65 17383.784 2.140 0.036 6.49218 3.98 ug/L Zn 66 2763.781 0.739 0.025 1.37081 3.21 ug/L Zn 67 811.378 1.796 0.007 2.28646 2.30 ug/L Zn 68 3160.581 3.792 0.030 2.28775 6.28 ug/L > Ge 72 91357.104 1.996 91357.104 ug/L As 75 682.582 3.704 0.007 0.34639 4.95 ug/L Se 77 257.839 2.449 0.002 0.93418 1.77 ug/L Se 82 147.336 10.653 0.001 0.22968 36.70 ug/L Ag 107 1297.773 11.991 0.001 0.08695 16.24 ug/L Cd 111 924.271 2.967 -0.000 -0.03800 23.02 ug/L Cd 114 166.880 16.747 0.000 0.00481 93.74 ug/L > In 115 1268242.183 0.518 1268242.183 ug/L Sb 121 680.032 2.564 0.001 0.07557 3.20 ug/L Sb 123 574.588 2.810 0.000 0.07894 3.45 ug/L Ba 135 78476.058 0.838 0.046 30.67576 0.91 ug/L Ba 137 136988.560 2.623 0.081 30.30113 2.95 ug/L > Tb 159 1691524.790 0.365 1691524.790 ug/L Ho 165 1738272.346 1.730 0.051 ug/L n 205 1522.143 1.391 -0.000 -0.00396 20.35 ug/L Pb 208 19052.589 2.107 0.010 0.54433 1.97 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 98.185 Cr 52 Cr 53 Mn 55

Sample ID: AE08014 Report Date/Time: Tuesday, April 16,2002 12:57:36 Page 1

NYC-WTC_000040814

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NYC-WTC_000040814Source: NYC Law Department, mirrored locally

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