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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: AE07511 Sample Date/Time: Wednesday, April 10,2002 10:52:48 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07511.439 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 11.667 30.102 0.000 0.00504 144.60 ug/L Se-1 45 506665.317 2.801 506665.317 ug/L Cr 52 9536.095 1.659 0.005 0.27841 16.01 ug/L Cr 53 1488.137 3.053 0.001 0.63807 9.10 ug/L Mn 55 247281.979 2.333 0.483 16.41635 4.87 ug/L Ni 60 796.710 9.209 0.002 0.33085 11.20 ug/L Cu 63 5529.070 1.639 0.010 0.91197 4.61 ug/L Cu 65 2673.086 1.022 0.005 0.98637 2.13 ug/L Zn 66 1507.140 3.085 0.007 0.40339 6.42 ug/L Zn 67 470.017 7.420 0.003 1.00199 10.32 ug/L Zn 68 1699.843 3.094 0.011 0.86160 4.98 ug/L Ge 72 98809.755 0.812 98809.755 ug/L As 75 1019.435 1.153 0.007 0.35495 1.93 ug/L Se 77 205.338 7.311 0.001 0.41445 23.82 ug/L Se 82 192.671 7.774 -0.000 -0.03520 185.67 ug/L Ag 107 125.002 6.400 -0.000 -0.06132 1.11 ug/L In 115 1356627.734 0.451 1356627.734 ug/L Sb 121 488.685 1.764 0.000 0.04848 2.32 ug/L Sb 123 379.698 5.440 0.000 0.04887 5.75 ug/L Ba 135 42490.157 0.280 0.023 15.49048 2.20 ug/L Ba 137 72935.824 1.027 0.040 15.25434 1.01 ug/L Ho 165 1819219.514 1.308 0.133 ug/L > Tb 159 1832907.589 2.021 1832907.589 ug/L n 205 597.026 9.457 -0.000 -0.00938 19.23 ug/L Pb 208 3007.893 1.659 0.001 0.03107 5.46 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 90.063 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID:AE07511 Report Date/Time: Wednesday, April 10, 2002 10:54:23 Page 1

NYC-WTC_000040493

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NYC-WTC_000040493Source: NYC Law Department, mirrored locally

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