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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: CCV CAL BK Sample Date/Time: Tuesday, April 16, 2002 15:42:09 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\CCV CAL BK.600 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 10.000 10.000 -0.000 -0.00682 39.39 ug/L > Se-1 45 530370.492 1.897 530370.492 ug/L Cr 52 7767.729 1.863 -0.002 -0.12056 23.14 ug/L Cr 53 982.396 4.445 0.000 0.21918 19.04 ug/L Mn 55 786.709 4.263 -0.001 -0.03073 7.53 ug/L Ni 60 49.334 20.304 0.000 0.00001 41103.06 ug/L Cu 63 268.673 6.052 -0.000 -0.00336 90.95 ug/L Cu 65 133.002 11.745 -0.000 -0.00869 55.68 ug/L Zn 66 531.021 2.097 -0.000 -0.00027 3816.43 ug/L Zn 67 142.336 2.839 0.000 0.02001 84.18 ug/L Zn 68 403.013 1.082 -0.000 -0.00318 110.66 ug/L > Ge 72 96791.268 1.695 96791.268 ug/L As 75 41.042 124.686 0.000 0.01028 245.18 ug/L Se 77 128.127 8.895 0.000 0.13858 36.69 ug/L Se 82 105.002 6.667 -0.000 -0.00318 1080.93 ug/L Ag 107 257.673 6.815 -0.000 -0.01153 17.37 ug/L Cd 111 928.440 5.202 -0.000 -0.03607 37.18 ug/L Cd 114 48.811 19.475 -0.000 -0.01487 9.89 ug/L In 115 1266640.773 1.419 1266640.773 ug/L Sb 121 69.334 1.665 0.000 0.00378 4.33 ug/L Sb 123 48.401 15.868 0.000 0.00158 71.52 ug/L Ba 135 52.667 4.778 -0.000 -0.00116 120.99 ug/L Ba 137 96.001 9.375 0.000 0.00290 84.05 ug/L > Tb 159 1700874.494 2.187 1700874.494 ug/L Ho 165 1648587.461 0.567 -0.007 ug/L 71 205 1221.428 6.910 -0.000 -0.01777 26.07 ug/L Pb 208 1740.749 2.250 -0.000 -0.01388 / 14.91 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ’ Be 9 > Se-1 45 108.519 Cr 52 Cr 53 Mn 55

Sample ID: CCV CAL BK Report Date/Time: Tuesday, April 16, 2002 15:44:24 Page 1

NYC-WTC_000040864

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