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Table of Contents < Method 505 Method 507 >  Method 506 The USEPA method 506 is an analytical method that utilizes a methylene chloride or liquid-solid extraction of drinking water, concentrated after clean-up to 1 mL in hexane and a gas chromatograph equipped with a capillary column to perfrom the sepation ofphthalate and adipate esters. To detect the GC eluant, a photoionization detector (PID) is used.  COMBINATION BLEND bis(2-Ethylhexyl)phthalate bis-(2-Ethylhexyl)adipate Di-n-butyl phthalate Butylbenzyl phthalate Diethyl phthalate Dimethyl phthalate Di-n-octyl Phthalate         1.2 mL @ 2000 µg/ml in ISOOCT   Catalog#: 506-AH           1.2 ML X 4 PACK   Catalog#: 506-AH-4