1、Designation:D7979151Standard Test Method forDetermination of Perfluorinated Compounds in Water,Sludge,Influent,Effluent and Wastewater by LiquidChromatography Tandem Mass Spectrometry(LC/MS/MS)1This standard is issued under the fixed designation D7979;the number immediately following the designation
2、 indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEEditorial corrections were made throughout in Nove
3、mber 2015.1.Scope1.1 This procedure covers the determination of selectedperfluorinated compounds(PFCs)in a water matrix usingliquid chromatography(LC)and detection with tandem massspectrometry(MS/MS).These analytes are qualitatively andquantitatively determined by this method.This method adheresto m
4、ultiple reaction monitoring(MRM)mass spectrometry.1.2 The Method Detection Limit(MDL)2and ReportingRange3for the target analytes are listed in Table 1.1.2.1 The reporting limit in this test method is the minimumvalue below which data are documented as non-detects.Ana-lyte detections between the meth
5、od detection limit and thereporting limit are estimated concentrations and are not re-ported following this test method.In most cases,the reportinglimit is the concentration of the Level 1 calibration standard asshown in Table 4 for the perfluorinated compounds after takinginto account the 50%diluti
6、on with methanol.It is above theLevel 1 calibration concentration for PFOS,PFBS,FHEA andFOEA,these compounds can be identified at the Level 1concentration but the standard deviation among replicates atthis lower spike level resulted in a higher reporting limit.1.3 UnitsThe values stated in SI units
7、are to be regardedas standard.No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices a
8、nd determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:4D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3856 Gui
9、de for Management Systems in LaboratoriesEngaged in Analysis of WaterD3694 Practices for Preparation of Sample Containers andfor Preservation of Organic ConstituentsD4841 Practice for Estimation of Holding Time for WaterSamples Containing Organic and Inorganic ConstituentsD5847 Practice for Writing
10、Quality Control Specificationsfor Standard Test Methods for Water AnalysisE2554 Practice for Estimating and Monitoring the Uncer-tainty of Test Results of a Test Method Using ControlChart Techniques2.2 Other Standards:5EPAPublication SW-846,Test Methods for Evaluating SolidWaste,Physical/Chemical Me
11、thodsThe Code of Federal Regulations 40 CFR Part 136,Appen-dix B3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.1This test method is under the jurisdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.0
12、6 on Methods forAnalysis forOrganic Substances in Water.Current edition approved Jan.1,2015.Published February 2015.DOI:10.1520/D7979-15E01.2The MDL is determined following the Code of Federal Regulations,40 CFRPart 136,Appendix B utilizing dilution and filtration.5 mL sample of water wasutilized.A
13、detailed process determining the MDL is explained in the reference andis beyond the scope of this test method to be explained here.3Reporting range concentration is calculated from Table 4 concentrationsassuming a 30 L injection of the Level 1 calibration standard for PFCs,and thehighest level calib
14、ration standard with a 10 mL final extract volume of a 5 mL watersample.Volume variations will change the reporting limit and ranges.4For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume informati
15、on,refer to the standards Document Summary page onthe ASTM website.5Available from National Technical Information Service(NTIS),U.S.Depart-ment of Commerce,5285 Port Royal Road,Springfield,VA,22161 or at http:/www.epa.gov/epawaste/hazard/testmethods/index.htmCopyright ASTM International,100 Barr Har
16、bor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2 Definitions of Terms Specific to This Standard:3.2.1 perfluorinated compounds,nin this test method,11perfluoroalkyl carboxylic acids,3 perfluoroalkylsulfonates,Decafluoro-4-(pentafluoroethyl)cyclohexanesulfonate and 6fluorotelomer acids listed in Table 1 collectively(not includingmass labeled surrogates).3.2.2 reporting limit,nthe minimum concentration belowwhich data are documented as non-detects.3.3 Acronyms:3.3.1 CCC,nCo
