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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: QCS 50+4 PPB Sample Date/Time: Tuesday, May 21, 2002 10:45:02 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.209 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 18106.528 0.480 0.363 50.48541 2.60 ug/L Li 6 49891.736 2.121 49891.736 ug/L Se-1 45 394872.553 2.289 394872.553 ug/L Cr 52 436510.828 2.522 1.090 51.43341 0.64 ug/L Cr 53 51209.686 1.197 0.128 50.52180 1.51 ug/L Mn 55 713913.700 1.076 1.805 50.72545 1.24 ug/L Co 59 515062.499 3.640 1.304 50.38749 2.17 ug/L Ni 60 105572.117 2.602 0.267 49.77277 0.97 ug/L Cu 63 239784.660 2.369 0.607 50.99058 2.06 ug/L Cu 65 115908.476 2.966 0.293 50.11610 2.65 ug/L Zn 66 77943.522 1.292 0.865 52.36055 1.59 ug/L Zn 67 13654.722 2.801 0.151 51.24265 3.53 ug/L Zn 68 57134.598 2.064 0.634 51.58231 1.56 ug/L Ge 72 89297.340 0.909 89297.340 ug/L As 75 103962.251 1.463 1.029 50.49682 0.71 ug/L Se 77 9947.388 1.060 0.094 49.95992 1.13 ug/L Se 82 10066.578 0.523 0.114 50.55956 0.83 ug/L As-1 75 88796.486 1.260 88633.816 49.20481 1.26 ug/L Kr 83 4632.226 1.472 -139.074 ug/L Ag 107 516187.610 0.322 0.409 50.62245 1.11 ug/L Cd 111 130992.070 1.352 0.104 50.30570 0.12 ug/L Cd 114 307203.255 1.638 0.243 50.44358 1.81 ug/L > In 115 1262035.803 1.323 1262035.803 ug/L Sb 121 443973.462 0.732 0.352 51.80362 1.13 ug/L Sb 123 341682.594 0.536 0.271 52.02215 1.39 ug/L Ba 135 124755.486 1.071 0.065 50.49907 1.01 ug/L Ba 137 218562.631 2.011 0.115 50.81497 0.90 ug/L Ho 165 1917907.072 1.374 -0.009 ug/L > Tb 159 1905100.230 1.501 1905100.230 ug/L Hg 201 5885.297 1.276 0.003 4.19902 2.18 ug/L Hg 202 13128.940 1.859 0.007 4.06694 1.36 ug/L TI 205 1543001.875 0.516 0.809 51.92839 1.02 ug/L Pb 208 2071988.526 1.115 1.087 51.04418 0.73 ug/L

Sample ID: QCS 50+4 PPB Report Date/Time: Tuesday, May 21,2002 10:47:30 Page 1

NYC-WTC_000053958

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