GCMS analysis results for sample AD31645, Jan 25 2002

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Laboratory report documenting GCMS analysis of sample AD31645 with detection of unknown compounds and surrogate recovery.

NYC-WTC_000050222–000050239

Folder label: “GCMS X 1/3/02 A 1/22 - 1/23/02”

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: Data. File : C:\MSDCHEM\1\5973N\02JAN22\31645.D Vial: 1 Acq On : 22 Jan 2002 12:12 pm Operator: Sample : 508 scan Inst : Instrumen Mise : January 22, 2002 Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\MSDCHEM\1...\SCAN508.M (RTE Integrator) Title : 508 scan method Library : C:\DATABASE\WILEY7N.L ********************************************************************* Peak Number 4 p-Xylene Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 7.11 0.10 ug/L 30464 1,4-Dichlorobenzene-d4 9.71 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 p-Xylene 106 C8H10 000106-42-3 83 2 Benzene, ethyl- (CAS) $$ EB $$ E... 106 C8H10 000100-41-4 64 3 Benzene, ethyl- (CAS) $$ EB $$ E... 106 C8H10 000100-41-4 64 4 2,4-Octadiyne 106 C8H10 002809-71-4 36 Abundance Scan 327 (7.107 min): 31645.D (-) m/z 91.10 100.00% 91

5000 106 1l_______________ __ _______________ ‘ ' I ' ‘ ‘ 1 I ' ‘ I ' ' ‘ ' I ‘ ‘ ‘ I 39 6.80 7.00 7.20 7.40 51 65 mmmm 79 84 1 ■ i ■' ■ i ■1" i ■ ■ • ■ i ■ ■ ■ ■ i ■ m/z 106.10 48.27% miz—> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 Abundance #10758: p-Xylene 91

5000 * ' 1 i * * ’ * । * ' ‘ 1 i * ‘ * 1 i 1 1 * * t 106 6.80 7.00 7.20 7.40 77 m/z 105.10 22.71% 51

nte-> i ‘ " i ■ ■ ■ ■ i" ■ ■ i ■ “ ■ i1 • ■ ■ i ■"' i ■ 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 , | , , M ! I I II | > I 1 1 | 1 1 | ! | 11111119 TTTpr Abundance #10713: Benzene, ethyl- (CAS) $$ EB $$ Ethylbenzene $$ Phe... 91 ■ • ■ ।»* • • । • • • > । • • • • । • i 6.80 7.00 7.20 7.40 5000 m/z 51.00 14.87% 106 51 65 77 1:1111117111111117711/1211111117 —mmmmpt Ipt *mupr m/z—> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 Abundance #10715: Benzene, ethyl- (CAS) $$ EB $$ Ethylbenzene $$ Phe... • ‘ ‘ I ‘ ’ I * ‘ ‘ • I ’ * 1 • I * ‘ ’ 1 I 91 6.80 7.00 7.20 7.40 m/z 39.10 12.82% 5000 106 51 65 77 , f,11, ■ 111 > * > । ri i11 > > > > j > > > > । - l1 ■1 ‘ i ■ ■" i ■" ■ i ■ “ • i1 ‘ ■ i ■1 “ I' "I' ■ i ■ ■ ■ ' i ' ' ■ ■ i mtz~> 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 6.80 7.00 7.20 7.40

31645.D SCAN508.M Thu Jan 24 13:50:35 2002 Page 6

NYC-WTC_000050231

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GCMS analysis results for sample AD31647, Jan 25 2002 · Box DEP Box 28

NYC-WTC_000050205

Laboratory report documenting GCMS analysis of sample AD31647 with detection of unknown compounds and surrogate recovery.

1 shared topics · Same agency, volume and box · similarity 0.998