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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: ICV STD2 60 PPB Sample Date/Time: Tuesday, April 16,2002 09:29:45 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york cityICV STD2 60 PPB.551 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 23504.254 1.827 0.049 58.47542 2.15 ug/L > Se-1 45 483316.188 0.762 483316.188 ug/L Cr 52 584049.328 3.201 1.191 61.97494 3.08 ug/L Cr 53 65468.958 2.244 0.134 58.98237 2.39 ug/L Mn 55 896956.190 0.908 1.853 60.40028 0.47 ug/L Ni 60 134405.486 1.801 0.278 - 57.04938 1.97 ug/L Cu 63 303763.164 1.373 0.628 59.41862 1.80 ug/L Cu 65 161245.971 3.163 0.333 60.19565 2.72 ug/L Zn 66 98608.933 0.957 1.029 56.92071 1.23 ug/L Zn 67 18468.263 2.088 0.192 58.79138 2.34 ug/L Zn 68 71348.696 2.270 0.744 * 55.96243 2.32 ug/L > Ge 72 95365.543 0.269 95365.543 ug/L As 75 115455.329 3.072 1.210 57.72288 3.22 ug/L Se 77 10450.981 2.267 0.109 57.58346 2.41 ug/L Se 82 12476.352 3.093 0.130 57.09662 3.19 ug/L Ag 107 671047.643 3.669 0.482 57.91955 3.27 ug/L Cd 111 166995.105 1.054 0.119 57.46895 1.01 ug/L Cd 114 371642.101 1.181 0.267 56.47764 1.53 ug/L In 115 1391630.929 0.632 1391630.929 ug/L Sb 121 549543.969 0.589 0.395 58.86912 0.76 ug/L Sb 123 429165.138 2.058 0.308 57.49490 1.80 ug/L Ba 135 172302.908 1.794 0.090 59.60754 3.25 ug/L Ba 137 292688.182 1.794 0.153 57.29480 3.59 ug/L > Tb 159 1912638.975 1.966 1912638.975 ug/L Ho 165 1881910.633 1.662 0.008 ug/L Tl 205 1465675.152 1.264 0.765 58.40511 1.31 ug/L Pb 208 2079791.103 0.559 1.086 59.22915 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 98.891 Cr 52 Cr 53 Mn 55

Sample ID: ICV STD2 60PPB Report Date/Time: Tuesday, April 16, 2002 09:32:13 Page 1

NYC-WTC_000040766

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