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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: AE07516 Sample Date/Time: Wednesday, April 10,2002 11:32:22 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07516.449 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 12.667 12.059 0.000 0.00728 47.04 ug/L > Se-1 45 505409.432 1.531 505409.432 ug/L Cr 52 10996.757 1.096 0.008 0.43765 1.18 ug/L Cr 53 1487.470 3.295 0.001 0.64047 8.87 ug/L Mn 55 248287.374 2.187 0.486 16.51054 1.14 ug/L Ni 60 822.379 7.358 0.002 0.34220 6.75 ug/L Cu 63 33366.121 0.638 0.065 6.11954 0.96 ug/L Cu 65 16379.907 0.739 0.032 6.23791 0.87 ug/L Zn 66 2024.246 1.590 0.012 0.71566 4.97 ug/L Zn 67 548.355 6.731 0.004 1.27459 6.83 ug/L Zn 68 2020.912 3.918 0.014 1.12924 2.83 ug/L > Ge 72 98026.790 2.009 98026.790 ug/L As 75 905.346 6.804 0.006 0.30107 10.78 ug/L Se 77 204.338 6.119 0.001 0.41875 22.17 ug/L Se 82 171.003 9.003 -0.000 -0.12652 44.12 ug/L Ag 107 135.336 7.584 -0.000 -0.06020 1.58 ug/L > In 115 1336992.798 0.064 1336992.798 ug/L Sb 121 499.352 10.183 0.000 0.05044 11.07 ug/L Sb 123 418.409 6.844 0.000 0.05516 7.37 ug/L Ba 135 40338.051 1.822 0.022 14.83651 1.71 ug/L Ba 137 69803.671 0.745 0.038 14.73187 0.89 ug/L Ho 165 1824591.056 1.680 0.145 ug/L > Tb 159 1816109.057 0.141 1816109.057 ug/L TI 205 471.684 7.235 -0.000 -0.01415 9.79 ug/L Pb 208 5012.590 0.120 0.002 0.09105 0.18 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 89.840 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07516 Report Date/Time: Wednesday, April 10, 2002 11:34:31 Page 1

NYC-WTC_000040513

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NYC-WTC_000040513Source: NYC Law Department, mirrored locally

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