GCMS surrogate recovery report, sample AE12283, June 2002

NYC 9/11 Public Portal Document Library Search Compound Report Data File : C:\MSDCHEM\l\DATA\0610022\12283.D Vial: 11 Acq On : 10 Jun 2002 7:10 pm Operator: Sample : gc/ms scan 6/7 Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\060302.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L ********************************************************************* Peak Number 17 Methylene Chloride Concentration Rank. 17 R.T. EstConc Area Relative to ISTD R.T.

5.59 0.36 ug/L 287641 1,4-dichlorobenzene-d4 9.90

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methylene Chloride 84 CH2C12 000075-09-2 5/ 2 Methylene Chloride 84 CH2C12 000075-09-2 53 3 Methylene Chloride 84 CH2C12 000075-09-240 4 Methylene Chloride 84 CH2C12 000075-09-2 7 Abundance Scan 428 (5.594 min): 12283.D (-423) (-) m/z 49.10 100.00% 49 41 71 84 — 5000 88 37 5.20 5.40 5.60 5.80 6.00 01 ’L’ xapaanat ■ i ■ ■" i ■ ■ ■ m/z 84.00 56.19% miz-> 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 Abundance #111039: Methylene Chloride 49 84 5000 5.20 5.40 5.60 5.80 6.00 m/z 41.10 55.80% 88

miz-> 2831 3538 43 0 TTp-rTTp-rrTTTTTTpT-rrp-^^

Abundance 152 57 67 71 77 TTmnPuuntpoonnorf 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 #111040: Methylene Chloride Hmmm Woopiill "wwshW 49 84 5.20 5.40 5.60 5.80 6.00 5000 m/z 71.10 55.03% 35 88

n/z-> 14 2528 32 3841 0 mmmmmHpp 11111111"" 111" i11" 11 70 +2 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 H Abundance #12327: Methylene Chloride ............ 1..... 49 5.20 5.40 5.60 5.80 6.00 m/z 88.00 49.10% 84 5000 "MMy-A-appS. 88 n/z—> 14 18 24 2831 353841 0 ■ ■ iJ “ ■ 1'"11 ■11 ' I ■ t ■ ■ “ i11 ■ ‘ l1" ■ 1111 -1 ■ 2_________ 70_______, TmpOemEpampatk 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 H 5.20 5.40 5.60 5.80 6.00

12283.D 060302.M Tue Jun 11 08:24:43 2002 Page 20

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