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ICPMS daily performance check report, April 11, 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_000040598–000040646

Folder label: “ICPMS 4/11/02

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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: Thursday, April 11, 2002 15:19:16 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\CCV STD1 30 PPB.486 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 13512.507 2.423 0.029 33.51972 5.20 ug/L > Se-1 45 461440.430 2.907 461440.430 ug/L Cr 52 257458.147 1.492 0.543 30.22286 4.56 ug/L Cr 53 32199.626 3.541 0.069 31.19128 1.24 ug/L Mn 55 394481.998 2.372 0.851 28.47036 2.58 ug/L Ni 60 62508.498 1.734 0.135 31.01206 3.20 ug/L Cu 63 142048.740 4.533 0.307 29.30623 2.12 ug/L Cu 65 70854.482 1.839 0.153 30.67076 4.74 ug/L Zn 66 47523.754 2.542 0.536 30.72819 0.51 ug/L Zn 67 7880.493 0.943 0.089 29.21620 4.07 ug/L Zn 68 34820.910 0.806 0.393 32.02150 3.68 ug/L > Ge 72 87285.821 3.033 87285.821 ug/L As 75 54935.488 1.446 0.629 32.31979 2.87 ug/L Se 77 4605.547 4.808 0.052 30.37543 2.36 ug/L Se 82 6078.427 3.099 0.069 31.66868 0.07 ug/L Ag 107 292831.849 1.612 0.243 31.44408 3.16 ug/L Cd 111 73443.163 0.618 0.061 30.11475 1.94 ug/L Cd 114 180469.473 2.469 0.151 31.65050 1.24 ug/L > In 115 1197771.611 1.642 1197771.611 ug/L Sb 121 249701.808 2.890 0.208 29.92451 1.50 ug/L Sb 123 193070.156 1.028 0.161 31.00243 1.73 ug/L Ba 135 72243.683 1.564 0.043 30.17638 3.96 ug/L Ba 137 132164.005 2.022 0.079 32.04899 3.76 ug/L Tb 159 1667170.264 3.002 1667170.264 ug/L Ho 165 1679338.340 1.231 0.048 ug/L TI 205 708507.247 3.569 0.424 31.51247 1.36 ug/L Pb 208 948049.427 1.285 0.568 31.16803 1.94 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 97.259 Cr 52 Cr 53 Mn 55

Sample ID: CCV STD1 30PPB Report Date/Time: Thursday, April 11, 2002 15:21:36 Page 1

NYC-WTC_000040643

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