1、Designation:D760016(Reapproved 2017)Standard Test Method forDetermination of Aldicarb,Carbofuran,Oxamyl andMethomyl by Liquid Chromatography/Tandem MassSpectrometry1This standard is issued under the fixed designation D7600;the number immediately following the designation indicates the year oforigina
2、l 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.1.Scope1.1 This procedure covers the determination of aldicarb,carbofuran,oxamyl and
3、 methomyl(referred to collectively ascarbamates in this test method)in surface water by directinjection using liquid chromatography(LC)and detected withtandem mass spectrometry(MS/MS).These analytes are quali-tatively and quantitatively determined by this test method.Thistest method adheres to multi
4、ple reaction monitoring(MRM)mass spectrometry.1.2 This test method has been developed by U.S.EPARegion 5 Chicago Regional Laboratory(CRL).1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 The Detection Verification Level(DV
5、L)and ReportingRange for the carbamates are listed in Table 1.1.4.1 The DVL is required to be at a concentration at least3 times below the Reporting Limit(RL)and have a signal/noise ratio greater than 3:1.Fig.1 displays the signal/noiseratios of the primary single reaction monitoring(SRM)transi-tion
6、s and Fig.2 displays the confirmatory SRM transitions atthe DVLs for the carbamates.1.4.2 The reporting limit is the concentration of the Level 1calibration standard as shown in Table 2 for the carbamates.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with
7、its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standa
8、rd-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1129 Terminology Relating to WaterD1193 Specificat
9、ion for Reagent WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3856 Guide for Management Systems in LaboratoriesEngaged in Analysis of WaterD3694 Practices for Preparation of Sample Containers andfor Preservation of Organic Constituent
10、sD5847 Practice for Writing 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 Documents:3EPA publication SW-846 Test Methods for Evaluating So
11、lidWaste,Physical/Chemical Methods3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 carbamates,nin this test method,aldicarb,carbofuran,oxamyl and methomyl collectively.3.2.2 detection
12、verification level,DVL,na concentrationthat has a signal/noise ratio greater than 3:1 and is at least 3times below the reporting limit(RL).3.2.3 independent reference material,IRM,na material ofknown purity and concentration obtained either from the1This test method is under the jurisdiction of ASTM
13、 Committee D19 on Waterand is the direct responsibility of Subcommittee D19.06 on Methods forAnalysis forOrganic Substances in Water.Current edition approved June 15,2017.Published July 2017.Originallyapproved in 2009.Last previous edition approved in 2016 as D7600 16.DOI:10.1520/D7600-16R17.2For re
14、ferenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from National Technical Information Service(NTIS),U.S.Depart-m
15、ent of Commerce,5285 Port Royal Road,Springfield,VA,22161 or at http:/www.epa.gov/epawaste/hazard/testmethods/index.htm.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internation
16、ally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 National Institute of Standards and Technology(NIST)or otherreputable supplier.The IRM shall be obtained from a differentlot of material than is used for calibration3.3 Acronyms:3.3.1 CCC,nContinuing Calibration Check3.3.2 IC,nInitial Calibration3.3.3 LC,n