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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE08016 Sample Date/Time: Tuesday, April 16,2002 13:00:10 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\newyork city\AE08016.576 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 18.368 -0.000 -0.00121 428.22 ug/L > Se-1 45 481350.796 0.171 481350.796 ug/L Cr 52 10158.775 1.633 0.004 0.21507 8.28 ug/L Cr 53 1495.138 2.037 0.002 0.77033 3.39 ug/L Mn 55 199715.754 1.177 0.412 13.44216 1.13 ug/L Ni 60 951.726 5.861 0.002 0.38673 6.33 ug/L Cu 63 9670.238 1.764 0.020 1.84949 1.67 ug/L Cu 65 5092.144 2.957 0.010 1.85669 3.19 ug/L Zn 66 3533.722 2.817 0.032 1.75152 1.88 ug/L Zn 67 823.379 1.891 0.007 2.21762 3.59 ug/L Zn 68 3417.677 1.507 0.032 2.38660 2.79 ug/L Ge 72 95133.571 1.842 95133.571 ug/L As 75 495.276 2.410 0.005 0.23820 1.28 ug/L Se 77 136.892 12.226 0.000 0.20020 45.57 ug/L Se 82 108.668 10.137 0.000 0.02145 199.06 ug/L Ag 107 663.698 13.454 0.000 0.02578 37.16 ug/L Cd 111 977.078 5.973 -0.000 -0.02543 63.99 ug/L Cd 114 221.034 11.069 0.000 0.01319 36.02 ug/L In 115 1294020.202 2.014 1294020.202 ug/L Sb 121 474.350 3.072 0.000 0.05028 3.48 ug/L Sb 123 385.031 1.504 0.000 0.04994 0.57 ug/L Ba 135 41400.814 1.310 0.025 16.29585 0.73 ug/L Ba 137 70130.958 2.629 0.042 15.62092 2.56 ug/L > Tb 159 1678797.834 1.215 1678797.834 ug/L Ho 165 1738223.711 2.000 0.059 ug/L n 205 1710.512 5.880 0.000 0.00516 100.65 ug/L Pb 208 4047.060 2.675 0.001 0.06176 8.31 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 98.489 Cr 52 Cr 53 Mn 55

Sample ID: AE08016 Report Date/Time: Tuesday, April 16, 2002 13:01:57 Page 1

NYC-WTC_000040816

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NYC-WTC_000040816Source: NYC Law Department, mirrored locally

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