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ICPMS daily performance check report, May 21, 2002

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Daily instrument calibration and performance verification log for ICPMS equipment conducted on May 21, 2002.

NYC-WTC_000053939–000054155

Folder label: “ICPMS 5/21/02

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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+5 PPB Sample Date/Time: Tuesday, May 21, 2002 10:40:51 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: c:\winnt\profiles\lrd1\elandata\Method\_NEWN.mth Dataset File: c:\winnt\profiles\lrd1\elandata\Dataset\newyork city\ICV STD2 60+5 PPB.208 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 21474.228 2.891 0.425 59.08552 2.22 ug/L Li 6 50541.295 1.482 50541.295 ug/L > Sc-1 45 395964.089 1.940 395964.089 ug/L Cr 52 505321.374 2.779 1.261 59.50306 3.18 ug/L Cr 53 60683.210 2.399 0.152 59.80067 1.17 ug/L Mn 55 832443.289 0.552 2.100 59.00597 2.44 ug/L Co 59 607480.214 0.799 1.534 59.28207 1.16 ug/L Ni 60 127003.261 0.480 0.321 59.73314 2.21 ug/L Cu 63 281404.282 0.848 0.710 59.68347 1.12 ug/L Cu 65 137789.807 3.272 0.348 59.40708 1.84 ug/L Zn 66 90450.650 0.385 0.998 60.37791 0.39 ug/L Zn 67 15715.064 1.693 0.173 58.59631 1.56 ug/L Zn 68 67107.805 1.206 0.740 60.21346 1.05 ug/L > Ge 72 89968.224 0.235 89968.224 ug/L As 75 123469.772 0.837 1.237 60.71175 0.97 ug/L Se 77 11884.872 0.300 0.115 60.91919 0.59 ug/L Se 82 12105.699 0.370 0.136 60.25680 0.56 ug/L As-1 75 106781.207 0.653 106618.537 59.18897 0.65 ug/L Kr 83 4509.163 0.805 -262.137 ug/L Ag 107 625598.163 1.668 0.489 60.52010 1.43 ug/L Cd 111 157211.315 0.840 0.123 59.55927 0.55 ug/L Cd 114 371965.336 0.519 0.291 60.24867 0.68 ug/L > In 115 1279418.925 0.295 1279418.925 ug/L Sb 121 519794.643 0.630 0.406 59.82227 0.60 ug/L Sb 123 400691.200 0.392 0.313 60.17172 0.45 ug/L Ba 135 149749.022 1.763 0.078 59.88047 1.12 ug/L Ba 137 265782.536 1.647 0.138 61.05178 1.38 ug/L Ho 165 1930406.273 1.562 -0.015 ug/L Tb 159 1928654.250 2.207 1928654.250 ug/L Hg 201 7011.107 1.788 0.004 4.94828 .2.93 ug/L Hg 202 16190.233 0.822 0.008 4.96078 1.74 ug/L n 205 1827309.361 1.448 0.947 60.75522 1.51 ug/L Pb 208 2455181.672 0.498 1.272 59.76688 1.82 ug/L

Sample ID: ICV STD2 60+5 PPB Report Date/Time: Tuesday, May 21, 2002 10:43:21 Page 1

NYC-WTC_000053955

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