EPA METHOD 525.2 PDF

Summary: Organic compound analytes, internal standards, and surrogates are extracted from a 1L sample by passing it through a disk or cartridge containing a solid matrix with a chemically bonded C18 organic phase [liquid-solid extraction LSE ]. Organic compounds are extracted from the LSE with small quantities of ethyl acetate followed by methylene chloride with further evaporation of the solvent. Scope: This method provides procedures for the determination of a wide range of organic compounds found in finished drinking water, source water, or drinking water in any treatment stage. B Contamination from sample carryover: Rinsing apparatus replacing syringes and injection port liners as needed can minimize contamination.

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Summary: Organic compound analytes, internal standards, and surrogates are extracted from a 1L sample by passing it through a disk or cartridge containing a solid matrix with a chemically bonded C18 organic phase [liquid-solid extraction LSE ]. Organic compounds are extracted from the LSE with small quantities of ethyl acetate followed by methylene chloride with further evaporation of the solvent.

Scope: This method provides procedures for the determination of a wide range of organic compounds found in finished drinking water, source water, or drinking water in any treatment stage.

B Contamination from sample carryover: Rinsing apparatus replacing syringes and injection port liners as needed can minimize contamination. QC Requirements: Initial demonstration of laboratory capability followed by regular analyses of laboratory reagent blanks LRBs , laboratory fortified blanks LFBs , and laboratory fortified matrix samples. Additional QC procedures are recommended. A method detection limit MDL must be determined for each analyte.

Maximum Holding Time: Samples can be held for 14 days generally see Sample Handling section of the method for exceptions. Extracts can be held up to 30 days. Precision: Precision and accuracy values were generated primarily from 8 replicate analyses of fortified reagent water using a liquid-solid C extraction cartridges and a quadrapole mass spectrometer see Table 3 of the Method. For these latter analytes 8 replicate reagent water samples were analyzed, except for PCB 6 replicates and toxaphene 7 replicates , and except for bis 2-ethylhexyl phthalate and di-n-butyl phthalate for which 7 replicates of fortified tap water were analyzed.

The method contains a large amount of additional information. Revision Number: Revision 2. Please contact us for all available analytes which can be tested by EPA Method The test methods page continues to expand and improve. If you have suggestions for improvement, we would enjoy hearing from you. Please contact the webmaster here. EPA Method No warranty express or implied is made as to the website accuracy, completeness, or applicability such as the age of a method and whether or not it applies to your project.

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EPA Method 525.2 Semi-Volatile Mix, 29-5 in Acetone

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