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GCMS blank analysis results, May 22, 2002

Machine-extracted title · confidence 95%

Laboratory report showing blank sample analysis for volatile organic compounds using gas chromatography-mass spectrometry on May 22, 2002.

NYC-WTC_000013049–000013076

Folder label: “GCMS X 5/21/02 A 5/21/02

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Scanned page image, NYC-WTC_000013061
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NYC 9/11 Public Portal Document

Library Search Compound Report Data File C:\MSDCHEM\1\DATA\052102\LB.D Vial: 10 Acq On 21 May 2002 8:40 pm Operator: Mclean Sample Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\052202.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 6 Thiophene Concentration Rank 13 R.T. EstConc Area Relative to ISTD R.T. 3.87 0.60 ug/L 468404 1,4-Dichlorobenzene-d4 9.90 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 Thiophene 84 C4H4S 000110-02-1 A 2 Thiophene 84 C4H4S 000110-02-1/4 3 Thiophene 84 C4H4S 000110-02-1 4 4 4H-1,2,4-Triazol-4-amine 84 C2H4N4 000584-13-4 4 Abundance Scan 135 (3.872 min): LB.D (-134) (-) m/z 84.00 00.00% 48 84

35 5000 58

3.60 3.80 4.00 4.20 miz-> 0- ,40 $1191111109111110111131172231110121237 Thfp 0 • I' ‘i1 • 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 mmm m/z 48.00 88.46% Abundance #33732: Thiophene

58 84 ws"Mhunoy 45 5000 39 3.60 3.80 4.00 4.20 m/z 35.10 51.65% 12 26 32 „ ...................................... TH .......................... 0- T-pT TT । ■ 111111111111! I 11111 ++ TTTTTTTT 1 n/z-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 * Abundance #116585: Thiophene 84

3.60 3.80 4.00 4.20 58 5000i m/z 82.00 47.80% 45 39

n/z-> 0- 12 18 26 32 „ 50 . . 69 TIB—n—n—a—m—mHhmnnp—HHhnt 111111111 j! IH | rr1 mH 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 „76.894-- Abundance #116584: Thiophene • ■ i ■ • I ' 11 ‘i 1 ‘ 84 3.60 3.80 4.00 4.20 58 m/z 58.10 33.24% 45 5000: 39

26 32 50 69 prn| 1111111111 ■ 11 > 111 i 11111111 lll| 1111 ++H+ Hmmlm-MAHmm n/z-> 0 o 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 3.60 3.80 4.00 4.20

LB.D 052202.M Wed May 22 12:03:12 2002 Page 9

NYC-WTC_000013061

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NYC-WTC_000013061Source: NYC Law Department, mirrored locally

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