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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: Standard 1 Sample Date/Time: Friday, May 24, 2002 08:54:24 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\Standard 1.348 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 13188.693 1.582 0.208 29.21496 1.49 ug/L Li 6 63300.923 0.542 63300.923 ug/L Se-1 45 477413.958 1.563 477413.958 ug/L Cr 52 303113.793 1.812 0.618 29.87733 0.55 ug/L Cr 53 36111.289 1.840 0.074 29.93716 0.83 ug/L Mn 55 490879.153 0.468 1.027 29.95534 1.73 ug/L Co 59 348448.124 0.376 0.730 29.46224 1.19 ug/L Ni 60 70530.271 1.218 0.148 28.66256 0.53 ug/L Cu 63 153067.952 1.619 0.320 28.46478 0.31 ug/L Cu 65 73521.511 0.769 0.154 27.96350 1.60 ug/L Zn 66 50083.420 0.880 0.506 30.53865 0.78 ug/L Zn 67 8814.361 2.590 0.089 30.01193 2.29 ug/L Zn 68 37322.165 0.941 0.377 30.31396 0.33 ug/L > Ge 72 97175.601 0.862 97175.601 ug/L As 75 72275.927 0.663 0.610 30.26869 1.61 ug/L Se 77 7246.031 1.347 0.058 31.09324 0.72 ug/L Se 82 6441.074 1.014 0.070 31.59233 0.97 ug/L As-1 75 56770.610 0.528 56660.942 32.50561 0.53 ug/L Kr 83 5048.452 1.174 -108.395 ug/L Ag 107 308553.056 1.843 0.242 30.02347 2.53 ug/L Cd 111 80110.899 0.550 0.063 30.55502 0.81 ug/L Cd 114 187173.380 0.726 0.147 30.26976 0.80 ug/L > In 115 1271869.207 1.041 1271869.207 ug/L Sb 121 254953.330 0.905 0.200 29.65536 0.54 ug/L Sb 123 196279.885 1.187 0.154 29.65661 0.64 ug/L Ba 135 74417.776 0.980 0.040 30.23598 1.08 ug/L Ba 137 128166.795 0.857 0.068 29.84346 1.23 ug/L Ho 165 1881841.965 2.084 -0.011 ug/L Tb 159 1880301.139 1.873 1880301.139 ug/L Hg 201 2927.167 2.751 0.002 2.07116 1.36 ug/L Hg 202 6487.380 2.230 0.003 2.04209 2.16 ug/L TI 205 870859.607 2.951 0.463 29.69718 2.75 ug/L Pb 208 1185828.602 0.340 0.630 29.74235 1.53 ug/L

Sample ID: Standard 1 Report Date/Time: Friday, May 24, 2002 08:56:20 Page 1

NYC-WTC_000054379

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