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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: AE07771 Sample Date/Time: Wednesday, April 10, 2002 12:46:50 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07771.466 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 16.000 22.535 0.000 0.01436 59.39 ug/L Se-1 45 508884.709 3.790 508884.709 ug/L Cr 52 18674.682 0.717 0.023 1.25328 5.80 ug/L Cr 53 2430.683 2.308 0.003 1.49026 8.37 ug/L Mn 55 598088.131 1.259 1.171 39.78082 3.47 ug/L Ni 60 3875.532 3.756 0.008 1.64434 0.13 ug/L Cu 63 137942.106 1.054 0.270 25.51450 2.70 ug/L Cu 65 66956.746 2.129 0.131 25.44329 2.46 ug/L Zn 66 361472.621 0.376 3.933 227.27487 0.26 ug/L Zn . 67 54940.121 2.355 0.597 195.00264 2.42 ug/L Zn 68 259967.026 0.760 2.829 222.20127 0.98 ug/L Ge 72 91707.491 0.251 91707.491 ug/L As 75 769.923 4.796 0.005 0.25898 7.38 ug/L Se 77 365.344 6.456 0.003 1.54676 9.98 ug/L Se 82 345.010 2.527 0.002 0.76543 5.98 ug/L Ag 107 288.007 11.459 -0.000 -0.04382 7.70 ug/L in 115 1232086.561 0.236 1232086.561 ug/L Sb 121 233.339 4.335 0.000 0.02325 5.42 ug/L Sb 123 186.241 3.759 0.000 0.02440 4.70 ug/L Ba 135 22508.724 1.010 0.013 8.83437 1.90 ug/L Ba 137 39145.495 0.949 0.023 8.81607 0.07 ug/L Ho 165 1691169.778 1.994 0.135 ug/L Tb 159 1700552.240 0.884 1700552.240 ug/L TI 205 628.695 1.752 -0.000 -0.00617 11.22 ug/L Pb 208 11538.634 0.876 0.006 0.30687 0.69 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 90.458 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07771 Report Date/Time: Wednesday, April 10, 2002 12:48:25 Page 1

NYC-WTC_000040547

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NYC-WTC_000040547Source: NYC Law Department, mirrored locally

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