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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: CCV STD1 30 PPB Sample Date/Time: Wednesday, April 10, 2002 12:09:18 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD1 30 PPB.456 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 13870.046 1.211 0.028 30.75132 2.83 ug/L > Se-1 45 489808.193 1.597 489808.193 ug/L Cr 52 275865.864 1.268 0.550 29.93783 0.96 ug/L Cr 53 32675.611 0.343 0.065 30.11076 1.88 ug/L Mn 55 431573.546 2.330 0.876 29.75469 1.75 ug/L Ni 60 66019.923 2.172 0.135 29.30527 3.78 ug/L Cu 63 151160.027 1.465 0.307 29.05471 3.09 ug/L Cu 65 74721.245 0.760 0.152 29.49693 2.30 ug/L Zn 66 48563.884 1.897 0.507 29.29007 2.86 ug/L Zn 67 8808.354 1.290 0.092 29.94782 1.82 ug/L Zn 68 36363.952 1.094 0.379 29.80858 0.47 ug/L > Ge 72 94285.747 1.350 94285.747 ug/L As 75 56947.202 2.617 0.601 29.98722 2.43 ug/L Se 77 4829.998 0.897 0.050 29.63233 2.09 ug/L Se 82 6408.990 2.736 0.066 29.12978 2.31 ug/L Ag 107 308140.352 1.499 • 0.236 29.21144 1.39 ug/L In 115 1299983.991 1.608 1299983.991 ug/L Sb 121 269350.006 2.031 0.207 30.59809 1.26 ug/L Sb 123 206649.441 0.659 0.159 30.22699 1.14 ug/L Ba 135 78160.050 1.486 0.044 29.54913 1.85 ug/L Ba 137 136086.380 0.596 0.077 29.51634 0.26 ug/L Ho 165 1757097.339 0.893 0.134 ug/L > Tb 159 1768162.998 0.728 1768162.998 ug/L TI 205 729013.812 0.736 0.412 29.89147 1.25 ug/L Pb 208 981966.202 0.990 0.554 29.72103 1.65 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 87.067 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: CCV STD1 30PPB Report Date/Time: Wednesday, April 10, 2002 12:11:22 Page 1

NYC-WTC_000040527

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NYC-WTC_000040527Source: NYC Law Department, mirrored locally

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