Antimony (Sb) sample batch analysis, Oct 12, 2001

NYC 9/11 Public Portal Document

Element: Sb Seq. No.: 42 AS Loc.: 2 Date: 10/12/2001 San^jle ID: IPC gl! dispensed: 10 from 36, 5 from 37, 20 from 2

Repl Sampl^onc i StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Signal Area Height Area Height Stored 1 (7.871| 7.871 0.025 0.024 0.021 0.003 0.012 11:24:00 No QC out ofylimins. /Current analytical sequence continued.

ISBBaSS8BSB8SBBBSBS8SB8BBS8SSSSBSBSSSB88SSBB8SS8SSB88B

Element: Sb Seq. No.; 43 AS hoc.: 3 Date: 10/12/2001 San^jle ID: CB IZh dispensed: 10 from 36, 5 from 37, 20 from 3

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Signal Area Height Area Height Stored 1 (1.04«-- 1.040 0.004 0.003 0.012 -0.003 0.012*^:26:37 No

SSSSBSSB8BBS8S»88SBSS8SSaBBSS:SSSSSBBBSSSSSSBSB8SSSSSSSSB:=8SBBBa8eSSXBSSSBSSS;SS8S5S&SSSSSBSBSeSBSSSSSS:BSSSSSBS:aSsaSS

Element: Sb Seq. No.: 44 AS Loc.; 24 Date: 10/12/2001 Sample ID: 24879 HIj dispensed: 10 from 36, 5 from 37, 20 from 24

Repl San^ileConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # gg/L gg/L Signal Area Height Area Height Stored 1 <T7585) 1.585 0.006 0.005 0.012 0.001 0.014 11:29:14 No

a:

Element: Sb Seq. No.: 45 AS Loc.: 25 Date: 10/12/2001 Sample ID: 24880 lilj dispensed: 10 from 36, 5 from 37, 20 from 25

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # gg/L'^ gg/L Signal Area Height Area Height Stored 1 <0.1964\ 0.1964 0.002 0.000 0.010 0.003 0.011 11:31:55 No

Element: Sb Seq. No.: 46 AS hoc.: 26 Date: 10/12/2001 Sample ID: 24881 /jLlt dispensed: 10 from 36, 5 from 37, 20 from 26

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # M9/L Signal Area Height Area Height Stored 1 <-0.14 -0.1407 0.001 -0,001 0.014 0.003 0.012 11:34:36 No

Element: Sb Seq. No.: 47 AS hoc.: 2 Date: 10/12/2001 San^le ID: IPC gL dispensed: 10 from 36, 5 from 37, 20 from 2

Repl Sgn^tieConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # fo/L gg/L Signal Area Height Area Height Stored 1 10.07 10.07 0.032 0.030 0.022 0.002 0.012 11:37:17 No QC value -ithin ipecified limits.

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NYC-WTC_000064896