英语翻译Dairyfoodsarewidelyconsumedintheworldbecausetheyareimportantsourcesofseveralessentialnutrientsinthehumandiet.Thisway,thedeterminationofchemicalelementsinthesematricesisoftenrequiredinordertoestablishquali

　　英语翻译

　　Dairyfoodsarewidelyconsumedintheworldbecausetheyare

　　importantsourcesofseveralessentialnutrientsinthehumandiet.

　　Thisway,thedeterminationofchemicalelementsinthesematricesis

　　oftenrequiredinordertoestablishqualitycontroloftheseproducts

　　[1–5].Generally,theseanalysescanbeeasilyperformedemploying

　　atomicabsorptionspectrometry(AAS),thatcalciumandmagnesium

　　aremacronutrientsand,forthisreasonthedeterminationofthese

　　elementsusingthemainlinesrequireshighdilutionofthesamples.

　　Anotherdifcultyisthefatcontentthatsometimescomplicatesthe

　　samplepreparationstep[6].

　　Thehigh-resolutioncontinuumsourceatomicabsorptionspec-

　　trometry(HR-CSAAS)usesascontinuumradiationsourceahigh-

　　intensityxenonshort-arclamp,whichprovidesabettersignal-to-noiseratiothanhollowcathodelampsusedinlinesource-FAAS[7].

　　Thisfeatureallowstheuseoflesssensitivesecondarylinestoreduce

　　sensitivityduringthedeterminationofmajorelementsandavoida

　　highdilutionofthesamples[8].Thisstrategyhasbeenusedforthe

　　determinationofsomeelementsinsugar-caneleaves[9]andalso

　　cobaltandvanadiuminundilutedcrudeoil[10].

　　Proceduresinvolvingsimplicationofthesamplepreparationstep

　　foranalysesofcomplexmatriceshavebeendeveloped[11].Thesolid

　　andslurrysamplingtechniquesemployingspectrometricmethods

　　suchas:high-resolutioncontinuumsourcegraphitefurnaceatomic

　　absorptionspectrometry(HRCSGFAAS)[12,13]ameatomic

　　absorptionspectrometry(FAAS)[14,15],inductivelycoupledplasma

　　opticalemissionspectrometry(ICPOES)[16,17],hydridegeneration

　　atomicabsorptionspectrometry(HGAAS)[18,19],electrothermal

　　atomicabsorptionspectrometry(ETAAS)[20]andothershavebeen

　　proposedforanalysesofseveralsamples[21].

　　Thispaperproposesafastanalyticalprocedurethatemploysslurry

　　samplingforthesequentialmulti-elementdeterminatio