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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: AE07513 Sample Date/Time: Wednesday, April 10, 2002 11:21:15 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07513.446 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 11.333 35.660 0.000 0.00558 162.15 ug/L > Se-1 45 481769.426 0.642 481769.426 ug/L Cr 52 9163.041 1.690 0.005 0.28836 4.15 ug/L Cr 53 1291.438 4.874 0.001 0.51902 12.78 ug/L Mn 55 295060.128 0.316 0.607 20.62886 0.91 ug/L Ni 60 923.723 6.227 0.002 0.40535 6.07 ug/L Cu 63 52601.955 1.412 0.108 10.19912 1.92 ug/L Cu 65 25511.340 1.689 0.053 10.21364 1.69 ug/L Zn 66 5429.676 1.776 0.050 2.90495 1.51 ug/L Zn 67 1003.399 1.564 0.009 2.98156 1.86 ug/L Zn 68 4476.814 2.552 0.042 3.30217 2.56 ug/L > Ge 72 92738.555 0.517 92738.555 ug/L As 75 985.720 3.004 0.007 0.37050 4.36 ug/L Se 77 176.337 8.718 0.001 0.30867 30.09 ug/L Se 82 159.003 1.258 -0.000 -0.13907 9.66 ug/L Ag 107 944.059 7.360 0.000 0.01774 40.22 ug/L > In 115 1289888.669 0.582 1289888.669 ug/L Sb 121 863.716 5.158 0.001 0.09416 4.92 ug/L Sb 123 659.129 8.478 0.000 0.09280 8.37 ug/L Ba 135 40745.905 3.051 0.023 15.34727 2.19 ug/L Ba 137 71490.437 1.803 0.040 15.45288 1.64 ug/L Ho 165 1761741.103 1.655 0.134 ug/L > Tb 159 1773403.724 1.601 1773403.724 ug/L TI 205 583.691 2.526 -0.000 -0.00911 10.73 ug/L Pb 208 12905.390 1.267 0.006 0.33330 2.20 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 85.638 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07513 Report Date/Time: Wednesday, April 10, 2002 11:22:50 Page 1

NYC-WTC_000040507

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NYC-WTC_000040507Source: NYC Law Department, mirrored locally

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