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ICPMS daily performance check report, April 22, 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_000040871–000040923

Folder label: “ICPMS 4/22/01

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: Standard 1 Sample Date/Time: Monday, April 22, 2002 11:53:33 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\Standard 1.492 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 8695.913 2.918 0.020 30.00000 1.93 ug/L > Se-1 45 423609.969 1.496 423609.969 ug/L Cr 52 245999.507 2.633 0.564 30.00000 1.22 ug/L Cr 53 29367.667 2.200 0.068 30.00000 0.92 ug/L Mn 55 369963.920 0.340 0.869 30.00000 1.18 ug/L Ni 60 62475.911 0.927 0.147 30.00000 0.59 ug/L Cu 63 142658.064 0.743 0.336 30.00000 0.91 ug/L Cu 65 71717.505 0.900 0.169 30.00000 1.17 ug/L Zn 66 43431.608 1.091 0.504 30.00000 0.81 ug/L Zn 67 7917.192 1.263 0.092 30.00000 0.76 ug/L Zn 68 32644.193 2.709 0.378 30.00000 1.20 ug/L > Ge 72 84987.657 1.595 84987.657 ug/L As 75 51193.450 2.318 0.602 30.00000 0.72 ug/L Se 77 4770.828 1.642 0.055 30.00000 1.78 ug/L Se 82 5724.526 1.414 0.066 30.00000 0.74 ug/L Ag 107 307202.549 1.312 0.237 30.00000 1.95 ug/L In 115 1293844.014 2.297 1293844.014 ug/L Sb 121 259850.246 1.112 0.201 30.00000 1.85 ug/L Sb 123 202137.452 0.570 0.156 30.00000 1.99 ug/L Ba 135 83638.928 2.052 0.045 30.00000 1.10 ug/L Ba 137 144291.016 1.520 0.077 30.00000 0.72 ug/L Ho 165 1866933.363 0.608 0.009 ug/L > Tb 159 1867814.419 0.959 1867814.419 ug/L Hg 201 2644.744 1.310 0.001 2.00000 0.41 ug/L Hg 202 5884.630 1.062 0.003 2.00000 0.16 ug/L TI 205 784600.696 1.060 0.419 30.00000 1.29 ug/L Pb 208 1053203.405 1.052 0.563 30.0000Q 0.91 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 Cr 52 Cr 53 Mn 55

Sample ID: Standard 1 Report Date/Time: Monday, April 22, 2002 11:55:14 Page 1

NYC-WTC_000040874

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