Industrial Hygiene Surface Sampling Method Summary

Name(s) of Compound Azathioprine
CAS # 446-86-6
Method Report Number SBM106-R0
Analytical Method HPLC-UV
Swabbing Media CleanTips swabs, 2 Large Alpha swabs, cat. TX714A, TWTexwipe
Swabbing Solution Mix 100 mL ethanol with 7.5 mL of 0.1% Trifluoroacetic Acid in water
Quantification Limit 1μg/sample
Average Recovery from Counter Top - 73.5%
Stainless Steel - 92.4%
Concrete Floor - 85.4%
Storage Conditions At ambient temperature for least 7 days
At 2 - 8 °C or ~ -20 °C for at least 21 days
Shipping Requirements Ambient temperature
Date Issued 02/28/2006

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