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ICPMS daily performance check report, April 11, 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_000040598–000040646

Folder label: “ICPMS 4/11/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE06798 Sample Date/Time: Thursday, April 11,2002 13:54:11 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE06798.477 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 5.000 20.000 -0.000 -0.02070 11.79 ug/L > Se-1 45 466131.512 2.025 466131.512 ug/L Cr 52 9590.488 2.872 0.005 0.28823 15.93 ug/L Cr 53 1329.444 2.942 0.002 0.81883 6.40 ug/L Mn 55 197808.457 1.414 0.421 14.06436 2.06 ug/L Ni 60 656.364 6.038 0.001 0.29617 8.18 ug/L Cu 63 6732.893 1.752 0.014 1.32928 3.76 ug/L Cu 65 3193.260 2.984 0.007 1.31121 1.86 ug/L Zn 66 2095.929 1.861 0.015 0.84846 4.43 ug/L Zn 67 544.688 5.672 0.004 1.38598 6.60 ug/L Zn 68 2069.590 3.715 0.017 1.35160 5.22 ug/L > Ge 72 90951.981 1.055 90951.981 ug/L As 75 507.982 4.671 0.005 0.26431 4.31 ug/L Se 77 153.003 3.976 0.001 0.37578 12.95 ug/L Se 82 138.336 0.417 0.000 0.21081 3.72 ug/L Ag 107 887.719 6.023 -0.000 -0.05820 11.40 ug/L Cd 111 896.326 0.948 -0.000 -0.02046 17.92 ug/L Cd 114 79.446 7.071 0.000 0.00245 36.11 ug/L > In 115 1223746.295 1.031 1223746.295 ug/L Sb 121 588.025 1.453 0.000 0.06032 2.80 ug/L Sb 123 441.125 3.118 0.000 0.05995 2.58 ug/L Ba 135 37631.118 1.856 0.023 15.72582 2.01 ug/L Ba 137 63724.205 0.703 0.038 15.46023 1.17 ug/L > Tb 159 1664121.978 0.475 1664121.978 ug/L Ho 165 1581302.737 . 1.745 -0.010 ug/L TI 205 1034.736 1.120 -0.000 -0.01668 1.94 ug/L Pb 208 4030.061 0.638 0.001 0.078Z7 0.76 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 98.248 Cr 52 Cr 53 Mn 55

Sample ID: AE06798 Report Date/Time: Thursday, April 11, 2002 13:55:58 Page 1

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NYC-WTC_000040625Source: NYC Law Department, mirrored locally

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