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Document / 11 pages

Selenium backlog report, Sept-Oct 2001

Machine-extracted title · confidence 90%

Summary of pending Selenium analyses including collection dates and assigned due dates for various sample types.

NYC-WTC_000065318–000065328

Folder label: “Se

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Scanned page image, NYC-WTC_000065325
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document SSSSSSSSSSSXZ3aSSS2SSSSSSSSBB£588SBBS&:S8SSSSS83SSSSSS8BCSSSC5SS8SZSSSaSSSSBase:SSBaas:S388BBSSSSSS588B&:SSBSSSBSSS5

Element: Se Seq. No.: 59 AS Loc.: 38 Date: 10/03/2001 San^le ID: S20 jzL dispensed: 5 from 37, 20 from 7, 20 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/^ Signal Area Height Area Height Stored 1 0.051 0.053 ‘ 0.091 0.067 0.039 16:17:41 No The calibration curve may not be linear. Addition number 4 applied. [20.00] Correlation Coefficient: 0.9865 Slope: 0.0026

Se 0.06-1

0.04“ 8 g €o w § 0.02“ □

1 I r 1 -10 0 10 20 30

Concentration

Calibration data for Se Entered Calculated Mean Signal Concentration Concentration Standard standard ID (Pk Area) (/ig/L) Deviation %RSD Calib Blank 0.000 -0.1451 S5 0.016 5.00 6.088 SIO 0.021 10.00 8.178 S15 0.043 15.00 16.54 S20 0.051 20.00 19.77 Correlation Coefficient: 0.98654 Slope: 0.00257 Intercept: 0.001

[Se] Sample Concentration 0.2613 /tg/L [Se] Sample Concentration 1.307 /ig/L

Page 44

NYC-WTC2o6OO65325

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NYC-WTC_000065325Source: NYC Law Department, mirrored locally

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