Selenium backlog report, Sept 2001

NYC 9/11 Public Portal Document

. Calibration data for Se Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (Mg/i*) (gg/h) Deviation %RSD Calib Blank 0.000 -0.1709 S2 0.017 2 1.978 S4 0.033 4 4.119 S6 0.049 6 6.128 S8 0.066^ 8 8.329 SIO 0,^7E^ 10 9.617 Correlation Coefficient :/o.9977 Slope: 0.00771 Intercept: 0.001

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Element: Se Seq. No.: 7 AS Doc.: 1 Date: 09/27/2001 Sample ID: QC'S gL dispensed: 10 from 36, 5 from 37, 20 from 1 gL dispensed: 10 from 36, 5 from 37, 20 from 1

Repl SampleConc! StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/^ \ /xg/L Signal Area Height Area Height Stored 1 ^.442 \ 5.442 0.043 0.042 0.063 0.024 0.021 17:12:20 No QC value within A]ipecified limits.

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Element: Se Seq. No.: 8 AS Loc.: 2 Date: 09/27/2001 Sample ID: IPC IJiTj dispensed: 10 from 36, 5 from 37, 20 from 2 /zL dispensed: 10 from 36, 5 from 37, 20 from 2

Repl Sampl^Qinc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 / 5.114 5.114 0.041 0.039 0.060 0.027 0.024 17:16:34 No QC valueIwithiiy specified limits.

Element: Se Seq. No.; 9 AS Loc.: 3 Date: 09/27/2001 Sample ID: CB lih dispensed: 10 from 36, 5 from 37, 20 from 3 /xL dispensed: 10 from 36, 5 from 37, 20 from 3

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/L Signal Area Height Area Height Stored 1 0.5037 0.5037 0.005 0.004 0.010 0.012 0.010 17:20:45 No

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Element: Se Seq. No.: 10 AS hoc.: 4 Date: 09/27/2001 Sample ID: LFB /xL dispensed: 10 from 36, 5 from 37, 20 from 4 /xL dispensed: 10 from 36, 5 from 37, 20 from 4

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # /igziu, /ig/L Signal Area Height Area Height Stored 1 < loTTs^ 10.75 0.084 0.083 0.118 0.034 0.038 17:24:56 No Sample absorbance! is greater than that of the highest standard. QC value\within ipecified limits.

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