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GC/MS blank analysis results for nitrosamines, sample AE10895, May 20

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Laboratory report showing non-detectable levels of nitrosamines and other contaminants in blank sample AE10895.

NYC-WTC_000024041–000024057

Folder label: “GCMS X 5/10/02 A 5/16/02

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NYC 9/11 Public Portal Document

Data File : C:\MSDCHEM\1\DATA\051602\510LB.D Vial: 3 Acq On : 16 May 2002 4:10 pm Operator: Mclean Sample : 5/10 eh Inst : Instrumen Mise Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\l\METHCDS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L

Peak Number 4 1,2-Phenylene diisothiocyanate Concentration Rank 8 R.T. EstConc Area Relative to ISTD R.T. 22.58 0.24 ug/L 255755 Phenanthranene-dl0 22.95 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 1,2-Phenylene diisothiocyanate 192 C8H4N2S2 071105-17-4 50 2 1,5-Naphthalenedithiole 192 C10H8S2 1000223-69-5 45 3 Bitoscanate 192 C8H4N2S2 004044-65-9 40 4 Anthracene, 9-methyl- 192 C15H12 000779-02-2 40 - Abundance Scan 3319 (22.580 min): 510LB.D (-3309) (-) m/z 192.10 100.00% 192

5000

70 82 *6 146 160 22.20 22.40 22.60 22.80 23.00 42 118 o1 ■ ‘i “■ 'i" "i ■" ■ i'" 'I1, “ i" TTTHTHTTTHTPTTITTgT tHhmmt ‘11" m/z 191.10 19.52% m/z-> 0 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200 Abundance #80862:1,2-Phenylene diisothiocyanate 192

64 5000 22.20 22.40 22.60 22.80 23.00 90 134 m/Z 193.10 16.47% 39 50 75

miz-> 0 +4.18244 +rH -H+ i 107 122 148 160 0 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200 I'1 ■ i"'11" " bri 1111" i"111

Abundance #80950:1,5-Naphthalenedithiole 192 1 I 1 1 ' ' I 1 1 ■ 1 i • ' IT 22.20 22.40 22.60 22.80 23.00 5000 m/Z 146.10 15.57% 115 128 159 40 57 69 79 96 147 HM1 0 ri | I I . I | U I 11 I ■. 11 I'l ! il I r 1 | I'l-I-J|'iTi'|I|’I'iti'|-i'|I|-| r I 11 ilerp , I 177 " i" " Trp-r miz-> 0 1020304050607080 90100110120130140150160170180190200 Abundance #125828: Bitoscanate 192 ,0 22.20 22.40 22.60 22.80 23.00 m/z 96.00 13.89%

5000 134

/z—> 50 63 75 80 102 122 0 . 11 ii ■ H ■ 1111 ■ 111! ii 1111 l'i rh , rh4h.7a-4—4-—+7hH Hmttp TH 0 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200 148 160 176 m 22.20 22.40 22.60 22.80 23.00

510LB.D 050102.M Fri May 17 15:08:53 2002 Page 7

NYC-WTC_000024051

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NYC-WTC_000024051Source: NYC Law Department, mirrored locally

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