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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: AE07515 Sample Date/Time: Wednesday, April 10, 2002 11:27:35 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\lelandatalDataset\NEWQ\NEWQ\E07515.448 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 11.000 27.273 0.000 0.00605 108.27 ug/L > Sc-1 45 457932.495 2.192 457932.495 ug/L Cr 52 8356.924 1.963 0.005 0.24657 7.04 ug/L Cr 53 1412.457 1.169 0.002 0.70570 3.67 ug/L Mn 55 291380.889 0.270 0.631 21.44469 2.11 ug/L Ni 60 774.374 5.176 0.002 0.35637 6.19 ug/L Cu 63 29375.025 2.226 0.063 5.94221 0.68 ug/L Cu 65 14386.854 1.428 0.031 6.04604 0.81 ug/L Zn 66 3345.316 0.769 0.029 1.70273 1.35 ug/L Zn 67 707.368 2.857 0.006 2.05473 3.94 ug/L Zn 68 2936.504 0.483 0.027 2.11271 2.06 ug/L Ge 72 88647.368 1.183 88647.368 ug/L As 75 874.557 7.713 0.007 0.33256 12.26 ug/L Se 77 186.337 4.338 0.001 0.42816 11.96 ug/L Se 82 155.670 13.373 -0.000 -0.11988 94.70 ug/L Ag 107 223.005 14.866 -0.000 -0.05038 6.68 ug/L In 115 1235041.192 2.598 1235041.192 ug/L Sb 121 537.688 1.758 0.000 0.05961 3.39 ug/L Sb 123 438.325 4.543 0.000 0.06313 3.45 ug/L Ba 135 38359.483 1.158 0.023 15.41252 0.81 ug/L Ba 137 66484.594 1.570 0.040 15.32787 1.56 ug/L Ho 165 1648229.097 1.423 0.132 ug/L > Tb 159 1662564.521 0.432 1662564.521 ug/L TI 205 450.349 2.714 -0.000 -0.01335 3.38 ug/L Pb 208 5843.796 2.124 0.002 0.13152 2.55 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 81.401 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: AE07515 Report Date/Time: Wednesday, April 10, 2002 11:29:10 Page 1

NYC-WTC_00004051 1

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NYC-WTC_000040511Source: NYC Law Department, mirrored locally

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