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Sample status query log, Selenium, Nov 2001

Machine-extracted title · confidence 90%

List of sample statuses and collection timestamps for Selenium analysis queries in November 2001.

NYC-WTC_000065239–000065256

Folder label: “Se

Page image
Scanned page image, NYC-WTC_000065254
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Element: Se Seq. No.: 74 AS Loc.: 38 Date: 09/17/2001 Sample ID: S20 gL dispensed: 5 from 37, 20 from 6, 20 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # gg/L gg/L Signal Area Height Area Height Stored 1 0.061 0.062 0.131 0.052 0.059 15:59:58 No The calibration curve may not be linear. Addition number 4 applied. [20.00] Correlation Coefficient: 0.9915 Slope: 0.0027

Se 0.08-f "IB^i

0.06 -

8 g •So 0.04- £< 0.02 -

n 1 “I ■10 0 10 20 30

Concentration

Calibration data for Se Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (gg/L) (gg/L) Deviation %RSD Calib Blank 0.000 -2.230 S5 0.017 5.00 4.180 SIO 0.030 10.00 8.898 S15 0.040 15.00 12.92 S20 0.061 20.00 20.63 Correlation Coefficient: 0.99148 Slope: 0.00266 Intercept: 0.004

[Se] Sample Concentration 1.556 gg/L [Se] Sample Concentration 77.82 gg/L

Page 21 NYC-WTC_000065254

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NYC-WTC_000065254Source: NYC Law Department, mirrored locally

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