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ICPMS daily performance check report, May 24, 2002

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Daily instrument calibration and performance verification log for ICPMS equipment conducted on May 24, 2002.

NYC-WTC_000054375–000054546

Folder label: “ICPMS 5/24/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: QCS 50+4 PPB Sample Date/Time: Friday, May 24, 2002 09:21:52 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\new york city\QCS 50+4 PPB.353 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 19925.016 1.999 0.350 50.11027 1.71 ug/L Li 6 56852.129 1.099 56852.129 ug/L Se-1 45 431200.045 0.327 431200.045 ug/L Cr 52 477471.650 5.634 1.091 52.60745 5.43 ug/L Cr 53 55649.379 1.226 0.128 51.90752 0.95 ug/L Mn 55 762809.745 1.042 1.767 51.40840 1.14 ug/L Co 59 542702.116 0.885 1.258 51.61010 1.08 ug/L Ni 60 110166.684 1.441 0.255 51.23374 1.77 ug/L Cu 63 237897.347 0.819 0.551 52.13394 1.14 ug/L Cu 65 114973.298 0.655 0.266 51.71916 0.98 ug/L Zn 66 77352.134 0.574 0.859 51.71385 1.21 ug/L Zn 67 13603.307 1.355 0.151 51.39613 2.32 ug/L Zn 68 58233.853 1.264 0.646 52.24440 1.74 ug/L Ge 72 89117.929 1.001 89117.929 ug/L As 75 106442.132 0.335 1.061 52.08360 1.44 ug/L Se 77 10427.891 0.381 0.100 52.71659 0.91 ug/L Se 82 10233.973 1.229 0.118 51.88010 1.76 ug/L As-1 75 90367.157 0.325 90257.488 48.07274 0.33 ug/L Kr 83 4837.002 0.723 -319.846 ug/L Ag 107 512918.216 0.489 0.427 54.25205 0.37 ug/L Cd 111 127090.125 0.373 0.106 50.77403 0.48 ug/L Cd 114 295148.719 1.081 0.246 50.49900 1.24 ug/L > In 115 1198825.772 0.839 1198825.772 ug/L Sb 121 416725.456 0.382 0.348 51.63450 0.47 ug/L Sb 123 318385.930 0.273 0.266 51.42719 0.68 ug/L Ba 135 116981.686 0.430 0.066 50.31826 0.51 ug/L Ba 137 202027.573 0.736 0.114 49.72181 1.06 ug/L Ho 165 1792215.765 1.648 -0.004 ug/L > Tb 159 1778429.296 0.328 1778429.296 ug/L Hg 201 5406.995 0.297 0.003 4.21540 0.62 ug/L Hg 202 12221.665 0.499 0.007 4.15122 0.71 ug/L Tl 205 1407818.918 0.208 0.791 51.09764 / 0.50 ug/L Pb 208 1895944.252 0.708 1.065 50.36166 / 0.74 ug/L

Sample ID: QCS 50+4 PPB Report Date/Time: Friday, May 24, 2002 09:23:49 Page 1

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