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ICPMS daily performance check report, April 23, 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_000040976–000041063

Folder label: “ICPMS 4/23/02”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE08935 Sample Date/Time: Tuesday, April 23, 2002 11:16:24 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE08935.677 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 8.333 27.713 -0.000 -0.00273 230.48 ug/L > Se-1 45 479418.795 1.069 479418.795 ug/L Cr 52 12797.463 1.266 0.011 0.60052 5.05 ug/L Cr 53 1659.835 6.627 0.002 0.87523 13.10 ug/L Mn 55 333906.893 1.883 0.695 24.53493 2.68 ug/L Ni 60 1342.779 5.265 0.002 0.52226 5.87 ug/L Cu 63 77150.784 1.093 0.160 15.62005 0.71 ug/L Cu 65 37930.702 2.148 0.079 15.37214 1.42 ug/L Zn 66 7456.799 1.311 0.070 4.22544 1.28 ug/L Zn 67 1430.794 5.192 0.013 4.36173 6.45 ug/L Zn 68 6248.543 1.679 0.059 4.78011 3.33 ug/L Ge 72 94647.486 1.409 94647.486 ug/L As 75 895.589 7.335 0.009 0.45292 6.42 ug/L Se 77 207.615 4.566 0.001 0.54865 11.00 ug/L Se 82 169.670 1.227 0.001 0.29251 5.16 ug/L Ag 107 93.335 11.254 -0.000 -0.05514 2.17 ug/L Cd 111 903.627 1.729 -0.000 -0.05077 21.27 ug/L Cd 114 203.449 • 13.620 0.000 0.00898 55.96 ug/L > In 115 1272303.320 1.268 1272303.320 ug/L Sb 121 622.028 2.844 0.000 0.06644 3.33 ug/L Sb 123 496.043 6.868 0.000 0.06822 7.04 ug/L Ba 135 48926.463 0.590 0.028 18.98508 0.74 ug/L Ba 137 84354.767 1.190 0.048 18.69261 0.41 ug/L > Tb 159 1756888.844 1.087 1756888.844 ug/L Ho 165 1747116.855 1.708 0.003 ug/L Hg 201 77.668 18.224 0.000 0.02010 61.61 ug/L Hg 202 171.003 2.549 0.000 0.01334 15.20 ug/L Tl 205 844.381 6.671 0.000 0.00730 38.28 ug/L Pb 208 463070.370 0.788 0.263 14.59489 0.52 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 103.243 Cr 52

Sample ID: AE08935 Report Date/Time: Tuesday, April 23, 2002 11:18:18 Page 1

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