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ICPMS daily performance check report, April 16, 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_000040755–000040869

Folder label: “ICPMS 4/16/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE07504 Sample Date/Time: Tuesday, April 16,2002 10:12:57 Sample Type: Spike -1 Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\AE07504.556 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 22073.003 3.196 0.044 52.39439 1.41 ug/L Se-1 45 506419.170 1.804 506419.170 ug/L Cr 52 484147.915 2.233 0.939 48.84551 0.98 ug/L Cr 53 55343.545 2.011 0.108 47.46781 0.49 ug/L Mn 55 1319383.686 1.422 2.604 84.85736 3.19 ug/L Ni 60 113064.273 2.951 0.223 45.78973 1.17 ug/L Cu 63 256952.649 0.357 0.507 47.96869 2.17 ug/L Cu 65 130602.185 1.366 0.258 46.52516 0.49 ug/L Zn 66 84272.164 2.753 0.852 47.14208 3.04 ug/L Zn 67 15496.693 2.922 0.156 47.77822 3.06 ug/L Zn 68 65091.076 3.884 0.658 49.49355 3.95 ug/L Ge 72 98301.609 0.610 98301.609 ug/L As 75 105399.752 4.568 1.072 51.11992 4.62 ug/L Se 77 9907.156 3.043 0.100 52.91095 3.09 ug/L Se 82 12048.441 3.993 0.121 53.46107 4.06 ug/L Ag 107 492206.424 0.424 0.356 42.83804 0.22 ug/L Cd 111 135857.034 1.159 0.098 47.07818 0.55 ug/L Cd 114 317009.786 2.709 0.230 48.57413 2.09 ug/L > In 115 1379933.167 0.641 1379933.167 ug/L Sb 121 463777.548 0.688 0.336 50.10376 1.32 ug/L Sb 123 371285.160 2.024 0.269 50.16027 1.49 ug/L Ba 135 224611.848 0.513 0.120 79.35845 1.29 ug/L Ba 137 383454.826 3.639 0.205 76.63462 2.62 ug/L Tb 159 1872389.344 1.044 1872389.344 ug/L Ho 165 1921313.436 3.165 0.050 ug/L n 205 1193157.945 1.230 0.636 48.54956 0.86 ug/L Pb 208 1617383.015 0.477 0.863 47.02455 0.62 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 104.814 > Sc-1 45 103.618 Cr 52 97.581 Cr 53 92.139 Mn 55 87.939

Sample ID: AE07504 Report Date/Time: Tuesday, April 16, 2002 10:15:47 Page 1

NYC-WTC_000040776

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NYC-WTC_000040776Source: NYC Law Department, mirrored locally

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