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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: AE07769 Sample Date/Time: Wednesday, April 10, 2002 12:39:52 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07769.464 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 12.000 43.301 0.000 0.00834 147.01 ug/L > Se-1 45 460857.375 1.113 460857.375 ug/L Cr 52 9680.249 1.856 0.007 0.39652 3.11 ug/L Cr 53 1617.160 3.462 0.002 0.90210 8.14 ug/L Mn 55 365880.683 1.101 0.789 26.79376 1.21 ug/L Ni 60 1103.411 5.183 0.002 0.50907 5.08 ug/L Cu 63 38217.898 1.838 0.082 7.71721 1.73 ug/L Cu 65 18904.493 1.144 0.041 7.90522 2.20 ug/L Zn 66 5488.712 2.149 0.052 3.00110 1.95 ug/L Zn 67 1064.406 0.842 0.010 3.26158 1.82 ug/L Zn 68 4615.218 1.760 0.044 3.48795 2.89 ug/L > Ge 72 91158.034 1.091 91158.034 ug/L As 75 1018.733 8.419 0.008 0.39762 10.96 ug/L Se 77 197.671 11.986 0.001 0.46887 36.10 ug/L Se 82 182.670 8.850 -0.000 -0.01142 658.70 ug/L Ag 107 289.341 1.596 -0.000 -0.04404 1.58 ug/L > In 115 1247321.682 2.010 1247321.682 ug/L Sb 121 748.708 39.485 0.001 0.08351 39.51 ug/L Sb 123 508.578 5.735 0.000 0.07315 4.11 ug/L Ba 135 45925.509 0.947 0.027 17.97308 1.15 ug/L Ba 137 79562.776 0.440 0.047 17.86569 0.90 ug/L Ho 165 1722558.951 1.061 0.149 ug/L Tb 159 1707310.465 0.752 1707310.465 ug/L TI 205 487.351 8.793 -0.000 -0.01229 14.70 ug/L Pb 208 8216.855 0.168 0.004 0.20112 0.97 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 81.921 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07769 Report Date/Time: Wednesday, April 10, 2002 12:41:26 Page 1

NYC-WTC_000040543

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NYC-WTC_000040543Source: NYC Law Department, mirrored locally

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