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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: CCV STD2 60 PPB Sample Date/Time: Wednesday, April 10, 2002 14:23:43 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD2 60 PPB.490 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 23264.296 0.779 0.057 61.98225 1.27 ug/L > Se-1 45 407640.294 1.085 407640.294 ug/L Cr 52 472475.936 4.265 1.145 62.38288 3.22 ug/L Cr 53 54627.541 1.524 0.132 61.19915 0.61 ug/L Mn 55 719052.557 1.033 1.759 59.75111 1.78 ug/L Ni 60 109532.373 1.061 0.269 58.41582 1.97 ug/L Cu 63 253627.215 0.604 0.621 58.68593 1.60 ug/L Cu 65 123770.547 1.524 0.303 58.73131 1.56 ug/L Zn 66 81164.545 1.012 1.033 59.66385 1.10 ug/L Zn 67 14557.464 2.687 0.185 60.37441 1.28 ug/L Zn 68 59927.141 0.728 0.762 59.88143 1.10 ug/L Ge 72 77988.945 1.805 77988.945 ug/L As 75 95640.814 0.595 1.223 61.06062 1.61 ug/L Se 77 7798.423 2.784 0.099 58.63471 3.98 ug/L Se 82 10643.335 2.032 0.134 59.41055 3.48 ug/L Ag 107 519781.883 0.575 0.477 58.97867 0.62 ug/L > in 115 1087396.929 0.702 1087396.929 ug/L Sb 121 458535.544 0.510 0.422 62.28116 1.19 ug/L Sb 123 351095.028 1.015 0.323 61.39215 0.51 ug/L Ba 135 129327.776 1.129 0.086 57.56018 0.18 ug/L Ba 137 227325.378 1.361 0.151 58.05262 2.10 ug/L Ho 165 1492358.429 0.695 0.134 ug/L > Tb 159 1502327.636 0.950 1502327.636 ug/L TI 205 1220893.509 1.747 0.812 58.94615 1.35 ug/L Pb 208 1669327.696 0.533 1.110 59.52077 0.83 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 72.461 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: CCV STD2 60 PPB Report Date/Time: Wednesday, April 10, 2002 14:25:49 Page 1

NYC-WTC_000040595

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NYC-WTC_000040595Source: NYC Law Department, mirrored locally

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