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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: AE07422 Sample Date/Time: Wednesday, April 10, 2002 10:23:12 Sample Type: Spike -1 Sample Description: MSD Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE07422.430 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 24890.945 0.678 0.048 51.79313 0.86 ug/L Se-1 45 521901.991 1.182 521901.991 ug/L Cr 52 467422.258 0.914 0.882 48.04765 1.01 ug/L Cr 53 55594.050 1.514 0.105 48.50301 1.68 ug/L Mn 55 1012693.265 3.071 1.935 65.74068 3.00 ug/L Ni 60 114695.722 2.315 0.220 47.76763 1.76 ug/L Cu 63 330608.751 2.432 0.632 59.74511 2.06 ug/L Cu 65 162400.482 1.258 0.311 60.19542 1.86 ug/L Zn 66 95381.113 1.528 0.948 54.77975 0.68 ug/L Zn 67 16798.674 0.297 0.167 54.43485 1.51 ug/L Zn 68 70570.239 1.048 0.701 55.10088 1.86 ug/L > Ge 72 99737.513 1.252 99737.513 ug/L As 75 103254.790 0.367 1.032 51.51639 0.90 ug/L Se 77 9250.465 2.223 0.091 54.30939 2.28 ug/L Se 82 12635.569 1.288 0.125 55.06657 0.14 ug/L Ag 107 516606.207 1.447 0.375 46.30653 1.44 ug/L > In 115 1376122.625 1.497 1376122.625 ug/L Sb 121 475030.103 0.829 0.345 50.98397 0.67 ug/L Sb 123 368481.766 1.041 0.268 50.91581 0.47 ug/L Ba 135 175929.494 0.871 0.093 62.47847 0.51 ug/L Ba 137 306882.830 2.051 0.163 62.52060 1.36 ug/L Ho 165 1870666.628 1.625 0.134 ug/L > Tb 159 1882873.883 0.764 1882873.883 ug/L n 205 1241393.538 0.510 0.659 47.81755 0.50 ug/L Pb 208 1720108.163 0.787 0.913 48.92424 0.71 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 103.581 > Sc-1 45 92.772 Cr 52 95.416 Cr 53 96.641 Mn 55 94.813 Ni 60 94.776 Cu 63 94.974

Sample ID: AE07422 Report Date/Time: Wednesday, April 10, 2002 10:24:47 Page 1

NYC-WTC_000040475

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