IntroductIon. Method , determination of organic compounds in drinking water by SPE and capillary column gas chromatography/mass Spectrometry, is a . Bromacil. EPA Method Revision Determination of Organic Compounds in Drinking Water by. Liquid-Solid Extraction and Capillary Column. EPA Method describes the procedure to determine low ppb levels of semi- volatile organic material in drinking water using solid phase.
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The test methods page continues to expand and improve. Compounds eluting from the GC column are identified by comparing their measured mass spectra and retention times to reference spectra and retention times in a data base.
Additional QC procedures are recommended. Please contact the webmaster here. Organic compounds – Instrument used for this test: For chlordane data, see alpha- and gamma-chlordane, and for PCBs see specific Aroclors. 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. Please contact us for all available analytes which can be tested by EPA Method Organic compound analytes, internal standards, and surrogates are extracted from a 1L sample 5252 passing it through a disk or cartridge containing a solid matrix with a chemically bonded C18 organic phase [liquid-solid extraction LSE ]. Kelso, Washington Laboratory Method information displayed is provided for informational purposes only.
Reference spectra and retention times for analytes are obtained by the measurement of calibration standards under the same conditions used for samples. No warranty express or implied is made as to the website accuracy, completeness, or applicability such as the age of a method and methoe or not it applies to your project. Initial demonstration of laboratory capability followed by regular analyses of laboratory reagent blanks LRBslaboratory fortified blanks LFBsand laboratory fortified matrix samples.
The organic compounds are eluted from the LSE cartridge with a small quantity of methylene chloride, and concentrated further by evaporation of some of the solvent. Please contact us for assistance.
The concentration of each identified component is measured by relating the MS response of the quantitation ion produced by that compound to the MS response of the quantitation ion produced by a compound that is used as an internal standard.
Analyte CAS Number 1,3-Dimethylnitrobenzene Acenaphthene-d10 Alachlor Atrazine Benzo a pyrene Bis 2-ethylhexyl Adipate Bis 2-ethylhexyl Phthalate Chrysene-d12 Hexachlorobenzene Hexachlorocyclopentadiene Perylene-d12 Phenanthrene-d10 Simazine Triphenyl Phosphate Examples: B Contamination from sample carryover: Organic compound analytes, internal standards, and surrogates are extracted from a water sample by passing 1 liter of sample water through a cartridge containing about 1 gram of a solid inorganic matrix coated e;a a chemically bonded Cl8 organic phase liquid-solid extraction, LSE.
The method contains a large amount of additional information. Rinsing apparatus replacing syringes and injection port liners as needed can minimize contamination.
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 replicatesand except for bis 2-ethylhexyl phthalate and di-n-butyl phthalate for which 7 replicates of fortified tap water were analyzed.
Organic compounds are extracted from the LSE with small quantities of ethyl acetate followed by methylene chloride with further evaporation of the solvent. Surrogate analytes, whose concentrations are known in every sample, are measured with the same internal standard calibration procedure.
If you have suggestions for improvement, we would enjoy hearing from you. 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.
A method detection limit MDL must be determined for each analyte.