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Liquid-liquid extraction parameters log, May 2002

Machine-extracted title · confidence 80%

Log sheet recording drip rates, volumes, and pH measurements during liquid-liquid extraction procedures for environmental samples in May 2002.

NYC-WTC_000023406–000023408

Folder label: “GCMS X 5/9/02 A 5/13/02

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OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Method S0% hb. Date Extracted‘ S/9/202 Page //3

Lab # j Description Sample Drip rate Surr Spit IS Final T.V. pH Count ____________________ vol/wt mVmin add add add vol. pos.

U 600, InL I Al QA 7

Leb 1_ | L 98 2.2, IaL A 1oS1 18 lol 60 6A i oi Cg 66 |Q i 64 loiG 7 0A 10817 lot So £g 2g -V 2 76

Remarks

drip rate must be between 5-15 ml/min for llq-liq extractors drip rate - Extraction type -XP ' Solv.lot# X&€27 NaCI lot# V76/— Na2SO4lot# 1466%2

STANDARD INT STD LOG# CALIBRATION (EFSPIKE 2 E MDL/MDRF Q. CHECK INT. STD. SURROGATE TCMx -22847 LPC ENDRIN/DDT

Analyst 2A . Reviewed by revision 4/12/01 Verified by Date

NYC-WTC_000023406

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NYC-WTC_000023406Source: NYC Law Department, mirrored locally

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