Dioxin wipe analysis results, Oct 2001

NYC 9/11 Public Portal Document

lABORATORY CONTROL SAMPLE DATA REPORT

Trace Level Organic Coinpounds

Client Lot G1J270136 Work Order EM0F81AC Matrix WIPE LCS Lot-Sample#: G1J270000-163 Prep Date : 10/27/01 Analysis Date,.: 10/28/01 Prep Batch : 1300183 Dilution Factor: 1

SPIKE MEASURED PERCENT PARAMETER AMOUNT AMOUNT UNITS RECOVERY METHOD 2,3,7,S-TCDD 200 202 101 SW846 8290 l,2,3,7,a-PeCDD 1000 S53 P3 95 SW846 8290 1,2,3,4,7,8-HxCDD 1000 1110 pg 111 SW846 8290 1,2,3,6,7,8-HxCDD 1000 1010 pg 101 SW846 8290 1,2,3,7,8,9-HxCDD 1000 1100 pg 110 SM846 8290 1,2,3,4,6,7,S-HpCDD 1000 997 pg 100 SW846 8290 OGDD 2000 2040 pg 102 SH846 8290 2,3,7,8-TCDP 200 199 pg 99 SW846 8290 1,2,3,7,8-PeCDF 1000 1070 pg 107 SW846 8290 2,3,4,7,3-PeCDF 1000 1050 pg 105 5W846 8290 1.2,3,4,7,8-ExCDF 1000 1050 pg 105 SW84e 8290 1,2,3,6,7,8-ExCDF 1000 1070 pg 107 SW846 8290 2,3,4,6,7,8-HxCDF 1000 1100 pg 110 SW846 8290 1,2,3,7,8,9-Hx.CDF 1000 1130 pg 113 SW846 8290 T,2,3,4,6,7,8-HpCDF 1000 1000 pg 100 SW846 8290 1/2,3,4,7,8,9-EpCDF 1000 1060 pg 106 Sn846 8290 OCDF 2000 2180 pg 109 SW846 8290

PERCENT RECOVERY INTERNAL STANDARD RECOVERY LIMITS 13C-2,3,7,8-TCDD 77 {40 - 135) 13C-1,2,3,7,8-PeCDD 81 (40 - 135) 13C-1,2,3,6,7,8-HxCDD 72 (40 - 135) 13C-1,2,3,4,6,7,8-HpCbD 88 (40 - 135) 13C-OCDD 89 (40 - 135) 13C-2,3,7,8-TCDF 82 (40 - 135) i3C-l,2,3,7,8-PeCDP 83 (40 - 135) 13C-1,2,3y4,7,8-HxGDF 76 (40 - 135) 13C-1,2,3,4,6,7,8-HpCDF 94 (40 - 135)

HOTE(S) ; Calculations are performed before rounding u avoid round-off errors in calculated results. Bold print denotes control parameters

G1J27O136 STL - Sacramento 373 - 5600

CITY_21 MC100_014596960

NYC-WTC_000177366