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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: LFB 50 PPB Sample Date/TIme: Tuesday, April 16,2002 09:40:39 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york cityLFB 50 PPB.553 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 19879.581 1.534 0.040 48.25784 5.99 ug/L Se-1 45 496116.111 4.379 496116.111 ug/L Cr 52 470906.500 0.316 0.933 48.55504 4.50 ug/L Cr 53 57143.323 2.148 0.114 50.09638 2.36 ug/L Mn 55 713577.962 1.284 1.437 46.84475 3.85 ug/L Ni 60 113605.145 2.335 0.229 47.06157 6.68 ug/L Cu 63 261291.157 4.297 0.526 49.78912 2.00 ug/L Cu 65 132493.996 1.589 0.267 48.26045 5.89 ug/L Zn 66 88768.580 1.637 0.940 52.04457 0.06 ug/L Zn 67 15015.876 1.480 0.159 48.51601 3.07 ug/L Zn 68 63832.012 2.030 0.676 50.87015 3.68 ug/L > Ge 72 93843.904 1.682 93843.904 ug/L As 75 100796.294 0.557 1.074 51.22084 2.21 ug/L Se 77 9455.194 2.424 0.100 52.90686 3.16 ug/L Se 82 11142.604 1.673 0.118 51.79379 3.36 ug/L Ag 107 562128.654 1.496 0.420 50.54369 2.68 ug/L Cd 111 133129.039 1.032 0.099 47.65971 2.34 ug/L Cd 114 323560.838 1.341 0.242 51.20876 0.76 ug/L > in 115 1336155.561 1.317 1336155.561 ug/L Sb 121 468077.881 1.807 0.350 52.22302 1.36 ug/L Sb 123 356414.860 0.942 0.267 49.74015 2.12 ug/L Ba 135 138234.231 1.452 0.074 49.12988 1.13 ug/L Ba 137 251392.121 0.836 0.135 50.56030 1.75 ug/L > Tb 159 1861194.241 2.442 1861194.241 ug/L Ho 165 1838625.377 0.766 0.012 ug/L TI 205 1274228.974 2.178 0.684 52.16752 0.44 ug/L Pb 208 1707060.281 0.976 0.916 49.94477 1.51 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff Be 9 > Se-1 45 101.510 Cr 52 Cr 53 Mn 55

Sample ID: LFB 50 PPB Report Date/TIme: Tuesday, April 16, 2002 09:42:58 Page 1

NYC-WTC_000040770

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