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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: AE07977 Sample Date/Time: Wednesday, April 10, 2002 13:36:49 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07977.478 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 r Be 9 11.000 15.746 0.000 0.00692 59.76 ug/L Se-1 45 444499.016 1.478 444499.016 ug/L Cr 52 10127.406 0.315 0.009 0.49367 3.95 ug/L Cr 53 1566.817 1.623 0.002 0.90907 3.29 ug/L Mn 55 209946.425 1.655 0.467 15.87021 2.25 ug/L Ni 60 666.031 1.881 0.001 0.31442 3.48 ug/L Cu 63 23686.054 0.705 0.052 4.91626 0.98 ug/L Cu 65 11497.715 0.537 0.026 4.97214 2.04 ug/L Zn 66 2491.366 1.667 0.020 1.15879 2.21 ug/L Zn 67 614.360 4.151 0.005 1.72996 5.65 ug/L Zn 68 2333.656 2.491 0.020 1.59460 3.62 ug/L Ge 72 87952.288 0.279 87952.288 ug/L As 75 908.766 3.720 0.007 0.35572 5.72 ug/L Se 77 186.670 9.663 0.001 0.44045 28.14 ug/L Se 82 179.670 5.142 0.000 0.00598 812.72 ug/L Ag 107 2178.284 8.325 0.001 0.15520 10.98 ug/L In 115 1180250.053 1.157 1180250.053 ug/L Sb 121 994.398 9.811 0.001 0.11982 11.36 ug/L Sb 123 812.561 10.061 0.001 0.12668 11.54 ug/L Ba 135 35809.124 3.139 0.022 14.77337 2.29 ug/L Ba 137 62440.367 1.772 0.039 14.78245 1.05 ug/L Ho 165 1623868.115 2.461 0.143 ug/L Tb 159 1618970.702 1.437 1618970.702 ug/L n 205 516.687 8.726 -0.000 -0.00986 17.48 ug/L Pb 208 5129.287 1.043 0.002 0.11295 1.46 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 79.013 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07977 Report Date/Time: Wednesday, April 10, 2002 13:38:24 Page 1

NYC-WTC_000040571

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NYC-WTC_000040571Source: NYC Law Department, mirrored locally

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