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ICPMS daily performance check report, April 15, 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_000040648–000040698

Folder label: “ICPMS 4/15/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV STD2 60 PPB Sample Date/Time: Monday, April 15, 2002 09:33:48 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york citICV STD2 60 PPB.493 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 26792.693 0.954 0.046 61.17905 1.29 ug/L . Se-1 45 584795.519 1.242 584795.519 ug/L Cr 52 588598.301 1.361 0.990 56.63819 0.48 ug/L Cr 53 72531.937 0.898 0.122 57.07196 0.48 ug/L Mn 55 976305.781 3.639 1.666 58.93522 2.50 ug/L Ni 60 155365.941 0.567 0.266 60.16629 1.79 ug/L Cu 63 360749.606 2.077 0.616 58.49837 0.95 ug/L Cu 65 167739.247 1.500 0.286 56.29542 1.63 ug/L Zn 66 111865.570 1.239 1.032 57.93512 1.66 ug/L Zn 67 19868.569 3.320 0.183 59.06596 0.78 ug/L Zn 68 83542.654 1.352 0.771 60.31463 3.39 ug/L > Ge 72 107714.411 2.681 107714.411 ug/L As 75 125607.561 1.895 1.167 58.48383 3.94 ug/L Se 77 18743.641 2.810 0.174 61.78646 5.28 ug/L Se 82 15070.633 0.798 0.139 61.49300 3.32 ug/L Ag 107 709992.971 1.521 0.478 58.63057 4.56 ug/L Cd 111 181239.351 1.593 0.121 61.22763 2.53 ug/L Cd 114 442963.053 1.361 0.299 62.71679 1.85 ug/L > In 115 1483824.733 3.010 1483824.733 ug/L Sb 121 595972.516 1.407 0.402 60.20140 1.62 ug/L Sb 123 450406.785 0.887 0.304 60.94031 2.52 ug/L Ba 135 183710.614 1.977 0.092 59.04046 1.83 ug/L Ba 137 319038.523 0.387 0.159 59.09653 1.52 ug/L > Tb 159 2003374.296 1.224 2003374.296 ug/L Ho 165 1883096.024 9.074 0.084 ug/L U 205 1685491.003 0.698 0.840 59.82530 1.08 ug/L Pb 208 2220280.054 2.568 1.107 58.33734 2.27 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 99.433 Cr 52 Cr 53 Mn 55

Sample ID: ICV STD2 60 PPB Report Date/Time: Monday, April 15,2002 09:36:16 Page 1

NYC-WTC_000040659

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