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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02”

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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 STD2 60 PPB Sample Date/Time: Tuesday, April 16, 2002 15:55:07 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 STD2 60 PPB.602 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 21398.731 4.166 0.044 ^52.45518 3.50 ug/L > Se-1 45 490388.965 0.716 490388.965 ug/L Cr 52 547229.632 2.054 1.099 57.16169 1.64 ug/L Cr 53 62611.197 1.627 0.126 55.55549 0.92 ug/L Mn 55 833733.338 0.816 1.698 55.32638 0.24 ug/L Ni 60 134614.920 1.937 0.274 56.30890 1.33 ug/L Cu 63 310194.588 1.230 0.632 59.79713 0.72 ug/L Cu 65 152994.363 3.769 0.312 56.28663 3.29 ug/L Zn 66 92624.146 1.723 0.967 53.49502 0.79 ug/L Zn 67 17207.112 1.880 0.179 54.80074 2.07 ug/L Zn 68 72464.414 1.225 0.756 56.89613 0.67 ug/L > Ge 72 95275.302 1.019 95275.302 ug/L As 75 112783.601 2.369 1.183 56.43549 1.73 ug/L Se 77 10148.700 0.249 0.105 55.95707 0.84 ug/L Se 82 12511.062 0.809 0.130 57.31288 0.95 ug/L Ag 107 627681.018 1.228 0.458 55.09235 0.54 ug/L Cd 111 164231.938 3.176 0.119 57.46603 2.61 ug/L Cd 114 380286.703 2.070 0.278 58.76169 1.43 ug/L In 115 1368532.240 0.717 1368532.240 ug/L Sb 121 538552.916 1.584 0.393 58.66184 0.88 ug/L Sb 123 428774.671 2.284 0.313 58.40921 1.59 ug/L Ba 135 173271.046 1.749 0.091 60.44836 1.13 ug/L Ba 137 294808.938 2.433 0.155 58.19076 1.83 ug/L > Tb 159 1895855.402 0.620 1895855.402 ug/L Ho 165 1907004.931 3.502 0.029 ug/L T1 205 1533428.875 2.784 0.808 61.63701 2.24 ug/L Pb 208 2077779.173 1.996 1.095 59.67546 1.37 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Se-1 45 100.338 Cr 52 Cr 53 Mn 55

Sample ID: CCV STD2 60 PPB Report Date/Time: Tuesday, April 16,2002 15:57:30 Page 1

NYC-WTC_000040868

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