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ICPMS daily performance check report, April 15, 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_000040648–000040698

Folder label: “ICPMS 4/15/02

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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 2 Sample Date/Time: Monday, April 15, 2002 09:20:37 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\Standard 2.490 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 25301.418 1.454 0.045 59.74121 3.03 ug/L Sc-1 45 565678.848 1.715 565678.848 ug/L Cr 52 603944.661 2.759 1.052 60.13703 2.44 ug/L Cr 53 74064.654 2.244 0.129 60.31039 2.98 ug/L Mn 55 972959.179 1.040 1.717 60.73780 0.68 ug/L Ni 60 149212.122 0.973 0.264 59.74364 2.54 ug/L Cu 63 356584.995 2.435 0.630 59.78510 2.12 ug/L Cu 65 172718.670 1.735 0.305 59.93741 2.38 ug/L Zn 66 113609.685 1.231 1.061 59.52691 4.77 ug/L Zn 67 19941.384 1.788 0.186 59.95601 1.97 ug/L Zn 68 80830.565 0.417 0.754 58.99659 4.15 ug/L Ge 72 106580.417 3.718 106580.417 ug/L As 75 126700.839 1.457 1.190 59.65919 5.17 ug/L Se 77 17485.334 7.579 0.164 58.35803 11.28 ug/L Se 82 14390.863 2.375 0.134 59 37002 5.65 ug/L Ag 107 735481.852 0.674 0.491 60.14729 3.67 ug/L Cd 111 179493.221 1.662 0.119 60.04260 1.59 ug/L Cd 114 422160.297 1.436 0.282 59.23337 4.52 ug/L > In 115 1498174.610 3.181 1498174.610 ug/L Sb 121 597398.536 0.990 0.399 59.77700 2.34 ug/L Sb 123 444603.767 0.723 0.297 59.58182 2.57 ug/L Ba 135 183873.280 2.160 0.093 59.90630 1.49 ug/L Ba 137 318178.646 1.244 0.161 59.75285 2.01 ug/L > Tb 159 1975999.565 0.796 1975999.565 ug/L Ho 165 1949439.370 0.900 0.130 ug/L TI 205 1652336.031 0.222 0.835 59.45894 0.89 ug/L Pb 208 2248229.415 1.180 1.137 59.89032 0.48 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rel. % Diff ’ Be 9 > Sc-1 45 Cr 52 Cr 53 Mn 55

Sample ID: Standard 2 Report Date/Time: Monday, April 15, 2002 09:22:24 Page 1

NYC-WTC_000040653

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