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ICPMS daily performance check report, April 9, 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_000040287–000040339

Folder label: “ICPMS 4/9/02

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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 STDI 30 PPB Sample Date/Time: Tuesday, April 09, 2002 11:53:04 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\MethodWEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD1 30 PPB.362 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Conc. Mean Conc. RSD Sample Unit Be 9 15568.812 1.809 0.028 34.18670 2.05 ug/L Sc-1 45 551502.304 2.541 551502.304 ug/L Cr 52 309029.353 1.984 0.546 29.84701 3.38 ug/L Cr 53 36409.464 0.728 0.065 29.86467 2.21 ug/L Mn 55 474241.446 2.140 0.858 29.41603 4.63 ug/L Ni 60 74669.491 0.826 0.135 29.38168 3.23 ug/L Cu 63 170531.278 0.083 0.309 29.29248 2.47 ug/L Cu 65 83863.570 0.966 0.152 29.25582 3.14 ug/L Zn 66 55628.576 0.812 0.533 30.54341 0.49 ug/L Zn 67 9648.214 1.147 0.092 29.53054 1.05 ug/L Zn 68 40782.697 1.697 0.390 30.38345 1.38 ug/L Ge 72 103574.043 0.334 103574.043 ug/L As 75 62722.815 1.595 0.603 29.65604 1.92 ug/L Se 77 5492.380 1.219 0.052 29.53717 1.57 ug/L Se 82 7391.411 1.178 0.069 30.39361 0.92 ug/L Ag 107 347798.988 2.234 0.239 29.47950 0.90 ug/L In 115 1447622.914 1.765 1447622.914 ug/L Sb 121 296249.162 1.445 0.205 30.22708 1.02 ug/L Sb 123 226270.001 1.752 0.156 29.85304 1.10 ug/L Ba 135 87019.705 0.459 0.044 28.40559 0.05 ug/L Ba 137 150629.600 1.193 0.077 28.14910 0.87 ug/L Ho 165 1960524.323 1.060 0.135 ug/L lb 159 1954526.419 0.413 1954526.419 ug/L 71 205 825414.834 0.288 0.422 29.8119 0.69 ug/L Pb 208 1111415.472 0.912 0.568 29.536 0.61 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rel. % Diff I Be 9 I> Sc-1 45 94.788 Cr 52 Cr 53 Mn 55 Ni 60 C Cu 63

Sample ID: CCV STD1 30 PPB Report Date/Time: Tuesday, April 09, 2002 11:55:42 Page 1

NYC-WTC 000040336

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NYC-WTC_000040336Source: NYC Law Department, mirrored locally

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