ASTM_D_4128_-_06_2012.pdf

Designation:D412806(Reapproved 2012)Standard Guide forIdentification and Quantitation of Organic Compounds inWater by Combined Gas Chromatography and ElectronImpact Mass Spectrometry1This standard is issued under the fixed designation D4128;the number immediately following the designation 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.1.Scope1.1 This guide covers the identification and quantitation oforganic compounds by gas chromatography/mass spectrometry(GC-MS)(electron impact)that are present or extracted fromwater and are capable of passing through a gas chromatographwithout alteration.The guide is intended primarily for solu-tions for which 1 ng or more of any component of interest canbe introduced onto a gas chromatographic column.This guidehas the advantage of providing tentative identifications ofvolatile and semi-volatile organics,but is restricted to(a)compounds for which reference spectra can be obtained and(b)compounds that can be separated by gas chromatography(GC).These restrictions are imposed on the guide,but are not alimitation of the technique.The guide is written for,but notrestricted to,analysis using automated data acquisition andhandling.1.2 Guidelines have been included for quantitation usingASTM Test Methods D3871,D3973,and other GC-MSvolatile/semivolatile procedures used for environmental analy-sis2.A detection amount of 1 ng can only be consideredapproximate.The actual detection limits for each componentmust be determined in each laboratory.Actual detectionamounts will vary with the complexity of the matrix,the kindand condition of the GC-MS system,the sample preparationtechnique chosen,and the application of cleanup techniques tothe sample extract,if any.Lower levels of detection can beachieved using modern sensitive instruments or with selectedion monitoring(SIM).To determine the interlaboratory detec-tion estimate(IDE)and the interlaboratory quantitation esti-mate(IQE),follow Practices D6091 and D6512.1.3 The guide is applicable to the identification of manyorganic constituents of natural and treated waters.It includesall modes of sample introduction,including injection of or-ganic extracts,direct aqueous injection,and purge and traptechniques.1.4 The guide is applicable to either packed or capillarycolumn gas chromatography,including wide-bore capillarycolumns.Because of their greatly enhanced resolution,capil-lary columns are strongly recommended.1.5 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 and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3D1066 Practice for Sampling SteamD1129 Terminology Relating to WaterD1192 Guide for Equipment for Sampling Water and Steamin Closed Conduits(Withdrawn 2003)4D1193 Specification for Reagent WaterD2908 Practice for Measuring Volatile Organic Matter inWater by Aqueous-Injection Gas ChromatographyD3370 Practices for Sampling Water from Closed ConduitsD3694 Practices for Preparation of Sample Containers andfor Preservation of Organic ConstituentsD3871 Test Method for Purgeable Organic Compounds inWater Using Headspace SamplingD3973 Test Method for Low-Molecular Weight HalogenatedHydrocarbons in WaterD5175 Test Method for Organohalide Pesticides and Poly-chlorinated Biphenyls in Water by Microextraction andGas ChromatographyD5316 Test Method for 1,2-Dibromoethane and 1,2-Dibromo-3-Chloropropane in Water by Microextraction1This guide is under the jurisdiction of ASTM Committee D19 on Water and isthe direct responsibility of Subcommittee D19.06 on Methods for Analysis forOrganic Substances in WaterCurrent edition approved June 15,2012.Published August 2012.Originallypublished as D4128 82.Last previous edition approved in 2006 as D4128 06.DOI:10.1520/D4128-06R12.2U.S.EPA Methods 624 and 8260(volatiles)and U.S.EPA Methods 625 and8270(semivolatiles)are suitable for quantitation.3For referenced 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.4The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 and Gas ChromatographyD5317 Test Method for Determination of Chlorinated Or-ganic Acid Compounds in Water by Gas Chromatographywith an Electron Capture DetectorD5789 Practice for Writing Quality Control Specificationsfor Standard Test Methods for Organic Constituents(Withdrawn 2002)4D6091 Practice for 99%/95%Interlaboratory DetectionEstimat