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Format for AOAC Official Methods of Analysis

Online Technical Resources Method Development, Optimization & Validation OMA Ͳ Appendix F Ͳ Guidelines for Standard Method Performance Requirements Homogeneity Guide for Writing Methods in AOAC Format Statistics Protocol Review Form OMA Ͳ Appendix D: Guidelines for Collaborative Study Procedures to Validate Characteristics of a Method of Analysis OMA Ͳ Appendix G: Procedures and Guidelines for the Use of AOAC Voluntary Consensus Standards to Evaluate Characteristics of a Method of Analysis OMA Ͳ Appendix I: AOAC INTERNATIONAL Methods Committee Guidelines for Validation of Biological Threat Agent Methods and/or Procedures OMA Ͳ Appendix J: AOAC INTERNATIONAL Methods Committee Guidelines for Validation of Microbiological Methods for Food and Environmental Surfaces OMA Ͳ Appendix K: Guidelines for Dietary Supplements and Botanicals OMA Ͳ Appendix L: AOAC Recommended Guidelines for Stakeholder Panel on Infant Formula and Adult Nutritionals (SPIFAN) SingleͲLaboratory Validation OMA Ͳ Appendix M Ͳ Validation Procedures for Method Review Examples of Statistical Analysis Statistics Manuscript Review Form OMA Ͳ Appendix A: Standard Solutions and Reference Materials OMA Ͳ Appendix D: Guidelines for Collaborative Study Procedures to Validate Characteristics of a Method of Analysis OMA Ͳ Appendix H: Probability of Detection (POD) as a Statistical Model for the Validation of Qualitative Methods Miscellaneous Definition of Terms and Explanatory Notes OMA Ͳ Appendix B: Laboratory Safety OMA Ͳ Appendix E: Laboratory Quality Assurance OMA Ͳ Appendix C: Reference Tables Quantitative Food Allergen ELISA Methods: Community Guidance and Best Practices Safety Checklist

Thelanguageofthemethodshouldbeconciseandcompletelyfreefromambiguity. Concisenessisdesirable,bothtoensureclarityandtosavespace. Wheneverthereisaconflict betweenclarityandstyle,clarityismoreimportant . PresentTenseandImperativeMode Checksentencesthatdonotbeginwithaverbandchangethem,iffeasible,tothe imperativemode(e.g.Pipet10mL...,Stir...,etc.).Exceptionsare:useofadverbmodifier ("Accuratelyweigh..."),prepositionalclause("Forrefinedsugars,use..."),permissive statements("Ferrichydroxidemaybeused..."),andstatementsinthe"Principle"section. Abbreviations MostabbreviationsarethesameasthoseusedbyChemicalAbstracts.Donotuse abbreviationsintitlesandheadings. Seethe DefinitionsofTermsandExplanatoryNotes . RepetitionandRedundancy Eliminaterepetitionandredundancyasfaraspossible;useonlyforemphasis.Donotuse "distilled"withwater,"concentrated"withcommonacids,"95%"withalcohol,or"ACS"with reagentscoveredbyACSspecifications.Theseareunderstoodbydefinition. Terminology, FormulaeandChemicalNames Fornamesofchemicalcompounds,usethespelling,hyphenation,andworddivisiongivenin ChemicalAbstracts. Useanationalpharmacopeiafornamesfordrugs. UseISO nomenclatureforpesticidesandCodexnomenclaturefornamesoffoodadditivesandcolor additives. Consistency Watchforinternalcontradictionsinthetext:volumesthatdonotadduporthatexceedthe capacityofthecontainer;tooabruptatransitionfromoneoperationtoanother(alinemay beomitted);andimpracticalorimpossiblenumbers(e.g.,100gNaCl willnotdissolvein100 mLwater). CrossͲreferences AllnewAOACmethodsshouldbewrittenascompleteandselfͲcontainedaspractical. Do notrefertootherAOACmethods. Ifpartofaprocedureinan Official Method SM istaken frommaterialpreviouslypublishedelsewhere,incorporatethosestepsinthemethodrather thanreferringtheanalysttoanotherpublication. Definitions Thesection"DefinitionofTermsandExplanatoryNotes," Official MethodsofAnalysisof AOACINTERNATIONAL ,isthebasicguidetoconventionsandconsistency. IllustrationsandTables Ifsymbolsareusedonthefigure,includeanexplanationinthecaptionortext. Provide descriptivetitlesfortables. Explainanyobscureheadingsinafootnote. BibliographicReferences Checkallreferencesforaccuracy. UsestandardChemicalAbstractsabbreviationsfor Journal titles. Ingeneralavoidreferencesinmethod. Citebackgroundreferencesinthe "Introduction"or"Discussion"sectionofthecollaborativestudymanuscriptͲͲnotinthe method. Ifpartofaprocedureinan Official Method SM istakenfrommaterialpreviously publishedelsewhere,incorporatethosestepsinthemethodratherthanreferringthe analysttoanotherpublication. Safety All methodsmustbereviewedforsafetyandpotentialhazards. Methodsshould automaticallyincorporatecrossͲreferencestothesafetystatement(s),orpresent questionedconditionstotheattentionoftheCommitteeonSafetyforresolution. Decisionsregardinginclusionofsafetystatementsshouldbepractical,recognizingthat overusewillbeselfͲdefeating. Methodsthatcreatetoxic,obnoxiousorenvironmentallyhazardousfumesandwastes shouldcontainpracticaldirectionsfordisposal. CheckingEditedCopyandProofreading Theauthormustreviewacopyoftheoriginalversionandeditedcopytoensurethatthere hasbeennochangeinmeaning,tocorrecttypographicalerrors,andtoanswerany questionsposedbytheeditor. Theauthormustreviewthetypesetmethodforaccuracy.

All resources are accessible at http://www.aoac.org/vmeth/guidelines.htm Forquestions,please contact: P 301-924-7077 x157 E dmckenzie@aoac.org

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FORMAT OF AOAC® OFFICIAL METHODS of ANALYSIS OF AOAC INTERNATIONAL Title: Includesanalytebeingdetermined,typeof matrix(matrices),andanalyticaltechnique usedforanalysis. Applicability: Includeslistofmatrix(es)alongwithspecific matrixtypesandrangeorlimitsof determinationordetection.

Precautions: Makesananalystawareofhazardous materialsusedinanalysis. DataCollection: Table(s)thatpresentsperformance

parametersincludingmatricestestedina collaborativestudy,levelsofanalyte(s),% recovery,RSD r ,RSD R ,s r ,s R ,HORRAT,number ofobservations,etc

Principle: Explainsscientificpremiseonwhichthe

methodisoperatesspecificallythemechanism oftheanalysis.

Apparatus: Liststheequipmentthatrequiresassemblyor thathasspecifications criticaltothemethod performance.Describeequipmentintermsof performancecharacteristics.

Reagents: Listthereagentswithamountsand

appropriateunitsneededtoconductthe analysis anddescribethereagentsintermsof performancecharacteristics. SampleandTestPortionPreparation: Describethepreparationofsamplesandthe testportion.

Determination: Describestheactualanalysis.

Calculations: Sectionthatexplainshowtocalculatefinal results;presentedinaformofequationor description.

TheAOACstyleusedforpreparingmethodsforpublicationinthe Official Methodsof AnalysisofAOACINTERNATIONAL includesthefollowingessentials: 9 Standardizedformatthatfollows theorderoflaboratoryoperations. 9 Useoftheimperativemode. 9 CrossͲreferencestoidenticalreagents,apparatus,andoperations. 9 Useofstandardizeddefinitions,terminology,andstyle. 9 Useofacceptedabbreviationsandsimplifications. 9 UseofSIunits 9 MethodsshouldbewrittenascompleteandselfͲcontainedaspractical. 9 NormalityshouldbereferredintermsofMolarity. 9 ppmshould bechangedtomg/kgormg/L 9 ppbshould bechangedtong/gorng/mL 9 pptshould bechangedtopg/gorpg/mL

Othersectionsasneeded

REFERENCING AOAC ® OFFICIAL METHODS SM Whenreferencing AOAC®Official Methods SM ,only themethodnumbershould beusedasseeninthe followingexample: (1) Official MethodsofAnalysisofAOACINTERNATIONAL (2012)19thEd.,AOACINTERNATIONAL, Gaithersburg, MD,USA,Official Method 2008.01

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