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钟慈平, 等: 高效液相色谱法测定食用油中抗氧化剂的国家标准方法的优化研究


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          O p timizationoftheNationalStandardMethodfortheDetermination
                    ofAntioxidantsinEdibleOilsb yHi g hPerformance
                                     Li q uidChromato g ra p h y


                                                               2
                      ZHONGCi p in g CHENGChan gy u , SUXin , ZHOUHai y an ,
                                                                              1
                                     ,
                                                      1
                                    1
                                               1
                                        MA Wei , YUXiao q in 1∗
                         ( 1. SichuanInstituteo fFoodIns p ection , Chen g du611731 , China ;
                 2.Colle g eo fFoodScience , SichuanA g riculturalUniversit y , Ya′an625014 , China )
           Abstract : A methodofhi g hp erformanceli q uidchromato g ra p h y forthedeterminationofantioxidantsinfood
       inthenationalstandardGB5009.32-2016waso p timized.Theo p timizedtestconditionswereasfollows : Sam p les
       weredissolvedinnGhexanesaturatedwithacetonitrile , andtheantioxidantswereextracted3timesb y10 mLof
       acetonitrilesaturated withnGhexane ( containin g Ascorb y lPalmitate ); theC 18 solidp haseextractioncolumn was
       usedfor p urification.TheA g ilentEcli p seXDBGC 18 column ( 250 mm×4.6 mm , 5 μ m ) wasusedasstationar y
       p hase , and0.1% ( volumefraction ) formicacidGacetonitrilemixturesindifferentvolumeratioswereusedasmobile
       p hasefor g radientelution.Theo p timizedresultsshowedthatthe9antioxidantswerecom p letel yse p aratedwithin
       30min , thep eaksha p esweres y mmetrical , andtheresolutionwasbetter , whichsolvedthe p roblemsincludin g the
       p oor p eaksha p eofPGandthefailureofthebaselinese p arationofTHBPand TBHQinthenationalstandard
       method.Thes p ikedrecover y increasedfrom31.4%-90.1% ofthenationalstandardmethodto62.0%-104% , and
       RSDs ( n=6 ) ofthedeterminedvalueswerealllessthan13%.
           Ke y words : hi g hp erformanceli q uidchromato g ra p h y ; antioxidant ; edibleoil ; nationalstandard method ;
       o p timization























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