EPA METHOD 525.2 PDF

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.

Author: Dudal Shaktimi
Country: Swaziland
Language: English (Spanish)
Genre: Business
Published (Last): 24 July 2005
Pages: 243
PDF File Size: 20.41 Mb
ePub File Size: 12.28 Mb
ISBN: 923-7-75048-467-5
Downloads: 56031
Price: Free* [*Free Regsitration Required]
Uploader: Shaktilkree

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.

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.

EPA Method 525.2

Samples can be held for 14 days generally see Sample Handling section of the method for exceptions. Methoe contact the webmaster here. Reference spectra and retention times for analytes are obtained by the measurement of calibration standards under the same conditions used for samples.

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: 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.

  HIROSHI SAKURAZAKA PDF

A method detection limit MDL must be determined for each analyte.

Semivolatiles on Rxi-5ms by EPA Method / Restek Searchable Chromatogram Library /

The method contains a large amount of additional information. 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 with a chemically bonded Cl8 organic phase liquid-solid extraction, LSE. Extracts can be held up to 30 days. Additional QC procedures are recommended.

Spectrum Laboratories : EPA Method

B Contamination from sample carryover: Kelso, Washington Laboratory Method information displayed is provided for informational purposes only. The organic compounds are eluted from the LSE cartridge with a small quantity of methylene chloride, and concentrated further by evaporation of some epw the solvent.

The test methods page continues to expand and improve. Please contact us for assistance.

Organic ep 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 ]. Initial demonstration of laboratory capability followed by regular analyses of laboratory reagent blanks LRBslaboratory fortified blanks LFBsand laboratory fortified matrix samples. Metnod compounds are extracted from the LSE with small quantities of ethyl acetate followed by methylene chloride with further evaporation of the solvent.

  GROMACS 4.6 MANUAL PDF

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.

Semivolatiles on Rxi-5ms by EPA Method 525.2

Rinsing apparatus replacing syringes and injection port liners as needed can minimize contamination. 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.

525.

Please contact us for all available analytes which can be tested by EPA Method 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. Organic compounds – Instrument used for this test: For chlordane data, see alpha- and gamma-chlordane, and for PCBs see specific Aroclors.

Surrogate analytes, whose concentrations are known in every sample, are measured with the same internal standard calibration procedure.