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GCMS quality control note for sample AE03016, March 2002

Machine-extracted title · confidence 95%

Technical comment regarding low recovery rates in GCMS scan of sample AE03016, indicating a decision to reextract and reanalyze the specimen.

NYC-WTC_000005992–000006000

Folder label: “GCMS X 2/12/02 A 2/28/02

Page image
Scanned page image, NYC-WTC_000005999
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Data File C:\MSDCHEM\l\DATA\022802\03016.D Vial: 9 Acq On 1 Mar 2002 6:56 pm Operator: McLean * Sample 2/12/02 GC SCAN Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.P

Quant Method : C:\MSDCHEM\1\5973N\5080202.M (RTE Integrator) Title : Quantitation For Method 508gcscan Library : C:\DATABASE\WILEY7N.L

Peak Number 1 Silane, tetramethyl- Concentration Rank 1

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

5.60 1.09 ug/L 333805 1,4-Dichlorobenzene-d4 9.58

Hit# Of 5 Tentative ID MW MolForm CAS# Qual

1 Silane, tetramethyl- 88 C4H12Si 000075-76-3 50 2 Silane, tetramethyl- (CAS) $$ Te... 88 C4H12Si 000075-76-3 9 3 Silane, tetramethyl- $$ Tetramet... 88 C4H12Si 000075-76-3 9 4 Silane, tetramethyl-_______________ 88 C4H12Si 000075-76-3 9 Abundance Scan 278 (5.597 min): 03016.D (-) m/z 73.10 100.00% 73 8000

6000

4000

2000 45 5.20 5.40 5.60 5.80 6.00 i • ■ * ■ i ■ ......... 155.... 1 — 87 ’J’’*’I’L’II’UIII..... '11'1 'r' 103 m/z 45.10 13.82% m/z-> 0 10 20 30 40 50 60 70 80 90 100 110 Abundance #4814: Silane, tetramethyl- 73 8000

6000 10 A M.. 4000 5.20 5.40 5.60 5.80 6.00 m/z 71.10 7.09% 2000 43 . 15 29 53.60 .... ,| , 36 । I | | I'l-I'i | i I I ITT I 81 88................. 2 ’IIUOuITTuTII"ITI7rr !UE 19 m/z—> 0 10 20 30 40 50 60 70 80 90 100 110 Abundance #4813: Silane, tetramethyl- (CAS) S$ Tetramethylsilane SS ... 73 8000

6000 5.20 5.40 5.60 5.80 6.00 m/z 74.10 4.93% 4000

2000 45 15 29

m/z-> ■ ■ i ■ ■ • ■ i ■ । ■ ■ ) ■ ■ ‘ 0 । ■ -153 10 20 30 40 50 60 70 80 90 100 110 . 66 11 I 1 11 ITt 88

Abundance #4812: Silane, tetramethyl- $$ Tetramethylsilane S$ (CH3)4... 73 i ■ ■ ' ■ I 5.20 5.40 5.60 5.80 6.00 8000 m/z 69.10 4.90% 6000

4000

2000 43 2 15 36 || 55 66 TTTmummgmtmmmt liI > ■ i1 - ■88> I 1' 1 > l ■ ■ >11 1 i ■ ■ ■ ■ i ' 1 m/z—> 0 10 20 30 40 50 60 70 80 90 100 110 5.20 5.40 5.60 5.80 6.00

)3016.D 5080202.M Mon Mar 04 05:41:18 2002 Page 3

NYC-WTC_000005999

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NYC-WTC_000005999Source: NYC Law Department, mirrored locally

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