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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: AE07105 Sample Date/Time: Monday, April 15, 2002 10:07:40 Sample Type: Spike -1 Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\newyork city\AE071 05.499 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 23585.805 2.494 0.043 57.21018 4.34 ug/L > Se-1 45 550816.533 2.670 550816.533 ug/L Cr 52 507470.361 1.777 0.906 51.80256 4.16 ug/L Cr 53 57136.938 1.900 0.102 47.61247 4.31 ug/L Mn 55 1054742.749 1.535 1.913 67.67876 4.14 ug/L Ni 60 123831.375 1.566 0.225 50.93764 4.10 ug/L Cu 63 294572.682 1.080 0.534 50.72329 1.63 ug/L Cu 65 143196.862 1.316 0.260 51.04470 3.60 ug/L Zn 66 97221.068 0.535 0.905 50.77082 1.38 ug/L Zn 67 18743.492 1.401 0.174 56.23247 2.01 ug/L Zn 68 74884.676 2.264 0.697 54.52058 3.62 ug/L Ge 72 106714.492 1.400 106714.492 ug/L As 75 107553.829 2.494 1.008 50.52473 3.35 ug/L Se 77 13804.906 3.799 0.129 45.87988 2.50 ug/L Se 82 13403.675 0.663 0.125 55.12592 1.06 ug/L Ag 107 528225.588 2.017 0.351 43.02495 2.14 ug/L Cd 111 155418.846 2.667 0.103 51.77339 2.72 ug/L Cd 114 352585.743 0.908 0.235 49.28696 0.94 ug/L > In 115 1502258.375 0.405 1502258.375 ug/L Sb 121 506011.897 0.604 0.337 50.47021 0.74 ug/L Sb 123 395812.895 2.475 0.263 52.87007 2.45 ug/L Ba 135 196639.224 0.339 0.100 64.12450 1.35 ug/L Ba 137 329003.020 0.793 0.167 61.82751 0.56 ug/L > Tb 159 1974536.350 1.099 1974536.350 ug/L Ho 165 1879400.615 8.034 0.096 ug/L TI 205 1316753.333 1.708 0.666 47.40564 2.28 ug/L Pb 208 1789293.291 0.764 0.905 47.69215 0.65 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff •Dup. Rei. % Diff ' Be 9 114.396 > Sc-1 45 93.656 Cr 52 103.122 Cr 53 94.943 Mn 55 103.367

Sample ID: AE07105 Report Date/Time: Monday, April 15,2002 10:10:20 Page 1

NYC-WTC_000040671

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