GCMS surrogate recovery results, sample AE03017, March 2002

NYC 9/11 Public Portal Document LLDLaLy DEdrCI compound Report

Data,File C:\MSDCHEM\1\DATA\022802\212LBK.D Vial: 5 Acq On 1 Mar 2002 3:40 pm Operator: McLean Sample 2/12/02 GC SCAN Inst Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\l\5973N\5080202.M (RTE Integrator) Title : Quantitation For Method 508gcscan Library : C:\DATABASE\WILEY7N.L

Peak Number 1 Methane, isothiocyanato- (C... Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

5.60 1.44 ug/L 421752 1,4-Dichlorobenzene-d4 9.58

Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 Methane, isothiocyanato- (CAS) $... 73 C2H3NS 000556-61-6 9 2 Acetic acid, 3-[1,3]dioxolan-2-y... 174 C8H1404 000000-00-0 9 3 Silane, tetramethyl- 88 C4H12Si 000075-76-3 9 4 3 -(CYCLOHEX-3'-EN-YL)PROPANOL $$. . ■ 174 C8H14O4 015745-87-6 9 Abundance Scan 278 (5.597 min): 212LBK.D (-) m/z 73.10 100.00% 73 8000

6000

4000

2000 45 5.20 5.40 5.60 5.80 6.00 57 . 87 103 m/z 45.10 15.49% __________________ . , i i.i i l. 1 i ' ' ■ ' i ■ ' ■ ■ i ' ■ ■ ■ i 1 ' ' m/z-> 0 20 40 80 60 100 120 140 160 180 Abundance #1775: Methane, isothiocyanato- (CAS) $$ Methyl isothiocya... 73 8000

6000

4000 5.20 5.40 5.60 5.80 6.00 45 m/z 71.10 6.97% 2000 35 58 I,............................................................... .........I’r ri" 1, TT m/z-> 0 20 40 60 80 100 120 140 160 180 Abundance #78238: Acetic acid, 3-[1,3]dioxolan-2-ylpropyl ester 73 8000

6000 5.20 5.40 5.60 5.80 6.00 m/z 74.10 4.60% 4000 43 2000 27 55 87 , 113 131 ........... 174 , ' i ' ■ ' ■ i ' ' ' ■ 1 1 ■ ‘"I 1-111 1 1 m/z->_____ 0 20 40 60 100 80 120 140 160 180 Abundance #4814: Silane, tetramethyl- 73 5.20 5.40 5.60 5.80 6.00 8000 m/z 69.10 4.50% 6000

4000

2000 43

m/z-> +24154 0 20 40 | 55 60 , 88 ■ i ' 1 ' ■ i ■ ■ ■ ■ i ■ ■ ■ • i ■ ■ ' ' i ■ ■ ■ ■ i ■ 80 100 120 140 160 180 - 5.20 5.40 5.60 5.80 6.00

12LBK.D 5080202.M Mon Mar 04 05:54:32 2002 Page 3

NYC-WTC_000005914