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ICPMS daily performance check report, April 15, 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_000040648–000040698

Folder label: “ICPMS 4/15/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07105 Sample Date/Time: Monday, April 15, 2002 10:16:44 Sample Type: Spike -1 Sample Description: MSD Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\newyork city\AE071 05.500 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 23214.182 2.797 0.043 57.36054 3.90 ug/L > Sc-1 45 540539.509 1.484 540539.509 ug/L Cr 52 508923.707 0.365 0.926 52.92755 1.13 ug/L Cr 53 57111.761 1.405 0.104 48.47945 0.70 ug/L Mn 55 1039478.325 0.549 1.920 67.92548 1.19 ug/L Ni 60 124501.638 2.434 0.230 52.15985 3.05 ug/L Cu 63 291376.265 1.351 0.538 51.11400 0.63 ug/L Cu 65 143547.803 2.838 0.265 52.12700 3.77 ug/L ’ Zn 66 96396.686 0.590 0.903 50.67704 2.57 ug/L Zn 67 18751.510 1.555 0.175 56.64577 3.69 ug/L Zn 68 74834.520 1.138 0.701 54.84776 3.41 ug/L > Ge 72 106031.356 2.267 106031.356 ug/L As 75 108555.153 3.033 1.024 51.34161 4.58 ug/L Se 77 13993.583 9.699 0.132 46.83354 9.93 ug/L Se 82 13383.315 2.526 0.125 55.42247 4.04 ug/L Ag 107 535025.831 3.242 0.363 44.44695 2.80 ug/L Cd 111 155265.508 3.146 0.105 52.74987 1.57 ug/L Cd 114 348429.236 2.363 0.236 49.67045 0.79 ug/L > In 115 1472960.567 1.576 1472960.567 ug/L Sb 121 500761.957 1.166 0.340 50.94790 1.96 ug/L Sb 123 397229.391 2.201 0.270 54.11223 0.98 ug/L Ba 135 197878.474 0.961 0.100 64.48343 0.98 ug/L Ba 137 329340.635 2.274 0.167 61.84956 2.03 ug/L > Tb 159 1975803.161 1.018 1975803.161 ug/L Ho 165 1782445.431 7.595 0.046 ug/L n 205 1303582.402 0.568 0.659 46.89721 0.78 ug/L Pb 208 1775135.721 1.457 0.898 47.28492 1.64 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ’ Be 9 114.697 > Sc-1 45 91.908 Cr 52 105.372 Cr 53 96.677 Mn 55 103.861

Sample ID: AE07105 Report Date/Time: Monday, April 15, 2002 10:19:29 Page 1

NYC-WTC_000040673

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