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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: AE07512 Sample Date/Time: Wednesday, April 10, 2002 11:17:06 Sample Type: Spike -1 Sample Description: MSD Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07512.445 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 24634.252 1.909 0.049 53.68782 1.05 ug/L > Se-1 45 498275.284 1.681 498275.284 ug/L Cr 52 465540.223 0.890 0.921 50.16302 2.00 ug/L Cr 53 55152.346 0.644 0.109 50.43475 1.97 ug/L Mn 55 1046700.951 2.036 2.096 71.21084 3.65 ug/L Ni 60 111845.274 2.804 0.225 48.81477 4.46 ug/L Cu 63 304525.607 1.235 0.610 57.65450 2.76 ug/L Cu 65 149229.390 0.894 0.299 57.94478 2.54 ug/L Zn 66 92860.453 0.346 0.945 54.58723 1.46 ug/L Zn 67 16301.101 1.727 0.166 54.06574 3.23 ug/L Zn 68 67975.203 0.539 0.691 54.30842 0.96 ug/L Ge 72 97455.626 1.471 97455.626 ug/L As 75 103040.676 0.506 1.054 52.62072 1.62 ug/L Se 77 9197.743 1.226 0.093 55.28301 1.86 ug/L Se 82 12386.224 1.370 0.125 55.25926 2.55 ug/L Ag 107 512870.478 1.252 0.383 47.27071 0.70 ug/L > In 115 1338217.101 0.597 1338217.101 ug/L Sb 121 470104.281 1.049 0.351 51.88080 0.76 ug/L Sb 123 364292.599 0.488 0.272 51.76073 0.17 ug/L Ba 135 173170.616 2.055 0.095 63.44960 0.66 ug/L Ba 137 301619.375 2.155 0.165 63.40155 0.94 ug/L Ho 165 1823720.652 2.373 0.140 ug/L Tb 159 1824873.015 1.403 1824873.015 ug/L TI 205 1226522.029 2.102 0.672 48.74359 0.99 ug/L Pb 208 1654217.944 0.168 0.906 48.55031 1.31 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 107.378 > Sc-1 45 88.572 Cr 52 99.711 Cr 53 99.992 Mn 55 98.239 Ni 60 96.921 Cu 63 98.465

Sample ID: AE07512 Report Date/Time: Wednesday, April 10, 2002 11:19:16 Page 1

NYC-WTC_000040505

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NYC-WTC_000040505Source: NYC Law Department, mirrored locally

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