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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: AE07975 Sample Date/Time: Wednesday, April 10, 2002 13:03:14 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandatalDatasef\NEWQINEWQ\E07975.470 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 22.205 0.000 0.00673 85.82 ug/L Se-1 45 461138.650 1.405 461138.650 ug/L Cr 52 10395.045 1.783 0.009 0.48031 2.87 ug/L Cr 53 1714.846 0.963 0.002 0.99872 3.21 ug/L Mn 55 277255.309 1.796 0.596 20.24723 1.11 ug/L Ni 60 888.052 4.278 0.002 0.40739 5.46 ug/L Cu 63 230607.089 1.112 0.499 47.15130 2.54 ug/L Cu 65 114019.212 1.967 0.247 47.83386 3.39 ug/L Zn 66 8101.690 1.034 0.083 4.76974 3.45 ug/L Zn 67 1439.462 3.682 0.014 4.71531 3.98 ug/L Zn 68 6545.755 1.200 0.067 5.27358 2.65 ug/L Ge 72 89248.659 2.294 89248.659 ug/L As 75 956.380 8.905 0.007 0.37431 9.61 ug/L Se 77 220.338 7.379 0.001 0.64571 14.24 ug/L Se 82 182.004 7.143 0.000 0.00396 1291.01 ug/L Ag 107 73.334 19.730 -0.001 -0.06540 2.37 ug/L In 115 1242956.772 1.426 1242956.772 ug/L Sb 121 503.019 3.466 0.000 0.05508 5.27 ug/L Sb 123 362.945 4.679 0.000 0.05120 5.94 ug/L Ba 135 42689.106 1.669 0.025 16.93275 0.49 ug/L Ba 137 74064.237 0.998 0.044 16.85780 1.05 ug/L Ho 165 1684727.406 0.679 0.141 ug/L Tb 159 1684420.848 2.052 1684420.848 ug/L n 205 426.014 8.346 -0.000 -0.01466 7.89 ug/L Pb 208 17022.052 0.536 0.009 0.48503 2.23 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 81.971 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07975 Report Date/Time: Wednesday, April 10,2002 13:04:48 Page 1

NYC-WTC_000040555

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NYC-WTC_000040555Source: NYC Law Department, mirrored locally

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