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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: Standard 1 Sample Date/Time: Wednesday, April 10, 2002 09:36:21 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 1.420 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 15167.466 2.485 0.027 29.37596 0.86 ug/L Sc-1 45 553727.517 2.437 553727.517 ug/L Cr 52 308511.000 1.181 0.544 29.91771 2.10 ug/L Cr 53 37043.370 1.776 0.065 30.44149 2.00 ug/L Mn 55 495397.124 1.546 0.890 30.32497 2.33 ug/L Ni 60 76684.536 1.295 0.138 29.97990 1.18 ug/L Cu 63 175167.694 2.691 0.315 30.29355 1.34 ug/L Cu 65 86140.224 2.616 0.155 30.19412 2.66 ug/L Zn 66 55457.237 2.013 0.515 29.43788 0.96 ug/L Zn 67 9838.085 0.288 0.091 29.62339 1.31 ug/L Zn 68 41000.724 3.260 0.381 29.45680 2.29 ug/L > Ge 72 105943.512 1.070 105943.512 ug/L As 75 63852.199 1.591 0.599 29.68033 1.18 ug/L Se 77 5617.792 1.172 0.052 30.15012 1.84 ug/L Se 82 7424.772 0.423 0.068 29.48538 1.43 ug/L Ag 107 350566.861 1.944 0.236 29.35009 2.67 ug/L In 115 1479116.125 0.742 1479116.125 ug/L Sb 121 298480.216 0.602 0.202 30.25960 0.41 ug/L Sb 123 232845.599 0.702 0.157 30.38335 0.26 ug/L Ba 135 89918.766 1.020 0.046 30.83538 2.01 ug/L Ba 137 157106.259 1.232 0.080 30.69105 2.20 ug/L Ho 165 1764984.433 9.775 0.039 ug/L Tb 159 1961909.310 1.100 1961909.310 ug/L TI 205 833691.430 1.876 0.425 30.76597 2.67 ug/L Pb 208 1140207.212 1.407 0.580 31.05075 2.29 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 Ni 60 Cu 63

Sample ID: Standard 1 Report Date/Time: Wednesday, April 10, 2002 09:37:55 Page 1

NYC-WTC_000040455

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NYC-WTC_000040455Source: NYC Law Department, mirrored locally

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