GCMS surrogate recovery results, sample AE03017, March 2002

NYC 9/11 Public Portal Document LSC Area Percent 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

Method : C:\MSDCHEM\l\5973N\5080202.M (RTE Integrator) Title : Quantitation For Method 508gcscan Smoothing : OFF Filtering: 5 Sampling : 1 Min Area: 1 % of largest Peak Start Thrs: 0.2 Max Peaks: 100 Stop Thrs : 0 Peak Location: TOP

If leading or trailing edge < 100 prefer < Baseline drop else tangent Peak separation: 5

Signal : TIC

peak R.T. first max last PK peak corr. corr. % Of # min scan scan scan TY height area % max. total'

1 5.597 275 278 293 rBV 132139 421752 4.93% 0.905% 2 9.579 712 717 738 rBV 2333303 5874580 68.63% 12.607% 3 13.053 1095 1100 1114 rBV 4201927 7910438 92.41% 16.975% 4 18.169 1657 1664 1676 rBV 4176872 8480978 99.08% 18.200% 5 22.522 2138 2144 2156 rBV2 4010966 8559780 100.00% 18.369%

6 22.677 2158 2161 2173 rVB3 30352 93457 1.09% 0.201% 7 27.457 2684 2688 2696 rBV 578289 1054746 12.32% 2.263% 8 30.341 2998 3006 3028 rBV 3506065 8402497 98.16% 18.031% 9 34.214 3425 3433 3451 rBV 2394723 5800975 67.77% 12.449%

Sum of corrected areas: 46599203

2LBK.D 5080202.M Mon Mar 04 05:54:28 2002 Page 1

NYC-WTC_000005912