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ICPMS daily performance check report, April 22, 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_000040871–000040923

Folder label: “ICPMS 4/22/01

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE08481 Sample Date/Time: Monday, April 22,2002 12:52:31 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\AE08481.504 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 18592.851 1.940 0.039 57.02300 1.45 ug/L Se-1 45 477746.753 0.503 477746.753 ug/L Cr 52 440504.961 0.998 0.906 48.79872 0.88 ug/L Cr 53 52697.174 1.462 0.109 48.60688 1.10 ug/L Mn 55 910659.064 1.757 1.902 65.77960 1.70 ug/L Ni 60 110101.545 1.247 0.230 47.74128 1.04 ug/L Cu 63 255252.005 1.686 0.533 48.63867 1.85 ug/L Cu 65 126377.339 1.050 0.264 48.62881 1.24 ug/L Zn 66 90344.773 2.428 0.966 57.81490 1.93 ug/L Zn 67 16190.903 1.819 0.173 56.59419 2.05 ug/L Zn 68 67874.120 0.631 0.726 57.89185 1.22 ug/L > Ge 72 92803.898 0.853 92803.898 ug/L As 75 98387.537 1.510 1.059 52.88328 1.13 ug/L Se 77 9479.104 1.735 0.101 56.23343 1.53 ug/L Se 82 11497.048 1.319 0.123 56.46810 2.04 ug/L Ag 107 499160.310 0.717 0.378 48.93924 2.16 ug/L In 115 1318839.289 2.614 1318839.289 ug/L Sb 121 457601.223 1.769 0.347 52.40691 0.87 ug/L Sb 123 350821.254 1.232 0.266 51.81473 1.71 ug/L Ba 135 178538.213 1.675 0.097 65.72801 1.53 ug/L Ba 137 310501.380 2.683 0.168 65.73489 0.27 ug/L Ho 165 1825456.186 2.544 -0.000 ug/L Tb 159 1842433.880 2.936 1842433.880 ug/L Hg 201 4941.392 0.759 0.003 4.02477 3.71 ug/L Hg 202 10923.336 1.686 0.006 3.98565 1.95 ug/L 71 205 1219639.721 2.603 0.661 48.27192 1.30 ug/L Pb 208 1638327.874 0.677 0.889 48.13233 2.30’ ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff Be 9 114.074 > Sc-1 45 112.574 Cr 52 97.065 Cr 53 96.634 Mn 55 98.415

Sample ID: AE08481 Report Date/Time: Monday, April 22, 2002 12:54:57 Page 1

NYC-WTC_000040898

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