Selenium analytical results, Oct 3, 2001

NYC 9/11 Public Portal Document

‘Element: Se Seq. No.: 5 AS Loc.: 38 Date: 10/10/2001 Sample ID: S8 '/iL dispensed: 14 from 36, 5 from 37, 16 from 38 uh dispensed: 14 from 36, 5 from 37, 16 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # IJ-g/h lig/^ Signal Area Height Area Height Stored 1 0.045 0.046 0.081 0.037 0.030 15:45:25 No Standard number 4 applied. [8] Correlation Coefficient: 0.9976 Slope: 0.0056

Element: Se Seq. No.: 6 AS Loc.: 38 Date: 10/10/2001 Sample ID: SIO IJLli dispensed: 10 from 36, 5 from 37, 20 from 38 Uh dispensed: 10 from 36, 5 from 37, 20 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # fJLg/h Signal Area Height Area Height Stored 1 0.054 0.055 0.098 0.038 0.036 15:49:47 No Standard number 5 applied. [10] Correlation Coefficient: 0.9984 Slope: 0.0055

Se 0.06 -T

0.04“ 8 ■e S 0.02 -

O-T T I “I 0 5 10 15

Concentration

Calibration data for Se Entered Calculated Mean Signal Concentration Concentration Stcindard Standard ID (Pk Area) (gg/L) (Mg/i*) Deviation %RSD Calib Blank 0.000 0.0034 S2 0.010 2 1.826 S4 0.024 4 4.302 S6 6 5.781 S8 .045 8 8.210 SIO W4 10 9.877 Correlation Coefficientk 0.99837 Slope: 0.00548 Intercept: 0.000

Page 2

NYC-WTC_000065346