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Table of Contents < Method 606 Method 608 >  Method 607 The USEPA Method 607 is an analytical method which utilizes a methylene chloride extraction of municipal or industrial wastewater, concentrated after clean-up to 2-mL (in methanol) and a gas chromatograph equipped with a packed columnto perform the separation of nirtosamines. To detect the GC eluant, an NPD, N-P reductive Hall or thermal energy analyzer detector may be used.  NITROSAMINES N-Nitrosodi-n-propylamine N-Nitrosodimethylamine N-Nitrosodiphenylamine           1.2 mL @ 2000 µg/ml in METH   Catalog#: 8070-X  $21.00