GCMS unknowns report, DEP Box 15, June 2002

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GCMS analysis results for sample AE12168 dated June 3, 2002, documenting unknown compounds and surrogate recovery.

NYC-WTC_000013834–000013842

Folder label: “GCMS X 5/23/02 A 5/29/02”

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NYC 9/11 Public Portal Document

Library Search Compound Report Data File : C:\HPCHEM\l\DATA\MAY2902\12168.D Vial: 10 Acq On : 29 May 2002 8:12 pm Operator: Morgan Sample : gc/ms scan 5/23 Inst : 209 Mise Multiplr: 1.00 MS Integration Params: LSCINT.P Quant Method : C:\HPCHEM\1\METHODS\GCMS0528.M (RTE Integrator) Title : 209 625/TCLP calibration table Library : C:\DATABASE\NBS75K.L ********************************************************************* Peak Number 1 2-Pentanone, 4-hydroxy-4-methy Concentration Rank 1 R.T. EstConc Area Relative to ISTD R.T. 8.05 15.12 ug/1 1182200 1,4-Dichlorobenzene-d4 12.07 Hit# of 5 Tentative ID MW MolForm CAS# Qual 1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 53 2 Acetic acid, 1,1-dimethylethyl este 116 C6H1202 000540-88-5 28 3 Acetic acid, cyano-, 1,1-dimethylet 141 C7H11NO2 001116-98-9 23 4 5-Hexen-2-one 98 C6H10O 000109-49-9 9 Abundance Scan 327 (8.050 min): 12168.D (-) m/z 42.95 100.00% 40

59 5000

101 ■ ■ ■ ' i'' 1 ' I ' 1 1 1 I1T f j ■ >। 7.80 8.00 8.20 8.40

miz-> 10 ' ■ i ' 37,|, ' I " " I ' " ' 11 20 30 40 +53+ 69 83 *1227‘11111111111111119331111TTT1"11211 50 60 70 80 90 100 110 120 130 m/z 59.00 52.83% Abundance #64275:2-Pentanone, 4-hydroxy-4-methyl- 43 _......... ___

5000 59 ‘' 7.80 8.00 8.20 8.40 ' m/z 58.00 18.63% 15 31 — 101 | । 83 | > 1 I ' 1 ■ । 11 ' ■ ‘ i ■ TTTT 111 —3 TTT — *-1 — n1—1 — II1I01111119 ————233r iz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #3292: Acetic acid, 1,1 -dimethylethyl ester 40 ' ‘ ' i ■ ■ ■ ■ i • ■ ■ ■T ' < • • । ■ 7.80 800 8.20 8.40 5000 57 m/z 101.05 18.59% 101 15 27 I **1′8414*41 1 “ i " 110001/0000/01/0/0/0/11/1—2—0/00/0/0/B/nB/m—BBB/m iz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #7666: Acetic acid, cyano-, 1,1-dimethylethyl ester * * I ‘‘‘‘l* ’ * ’‘ 1 1 ‘ I * 1 59 7.80 8.00 8.20 8.40 m/z 41.00 7.24% 5000 41

68 mmmmt+53l 126 m/z-> 10 20 30 40) 50 60 70 80 90 100 110 120 130 7.80 8.00 8.20 8.40

12168.D GCMS0528.M Thu May 30 08:42:46 2002 Page 1

NYC-WTC_000013841

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GCMS analysis results, sample AE12223, June 2002 · Box DEP Box 15

NYC-WTC_000013864

Gas chromatography-mass spectrometry analysis of sample AE12223 conducted on June 3, 2002, detecting unknown compounds and 2,4-DDD surrogate at 76% recovery.

1 shared topics · Same agency, volume and box · similarity 0.999