毛細(xì)管氣相色譜法檢測(cè)面粉中添加劑方法的研究.pdf

1、南開(kāi)大學(xué)碩士學(xué)位論文毛細(xì)管氣相色譜法檢測(cè)面粉中添加劑方法的研究姓名：高揚(yáng)申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：生物化學(xué)與分子生物學(xué)指導(dǎo)教師：呂憲禹20090101AbstractTodaypeopiehaverealizedunsafefactorsinfoodTherefore，thestudyofsepararationandanalysisofharmfulfoodadditiveresiduesbecomemoreimportantforma

2、il’shealmTheresearchistostudyandexploreamethodforseparationandterminationof2Co加monfoodadditivesCoenzoylperoxideandsorbicacid)inwheatflourbycapillarygaschromatographyusingahomemadefusedsilicacapillarycolumn(O53mmx20mm)Bec

3、auseofusingthewidecalibercapillaryeolmnn，weneednottosplitwhiledeterminationThemethodwasfeaturedbythegoodseparati011ofsorbicacidandbenzoicacidfromthecomponentsThereservationtilneofsorbicacidandbenzoicacidwere42minand96min

4、nydrochlorichydroxylaminewasusedtoreducedbenzoylperoxideThesamplewasaeidatedbyhydrochloricacidandextravtedbytheacetonebeforedeterminingThelinearrangesaleO180rtg／mLforsorbicacidandbenzonicacid，thecorrelationcoef!Iiciellts

5、aremorethan09990Thedetectionlimitsare21xg／mLforbenzoylperoxideand2“g／mLforsorbicacidTherdativestandarddeciations(n=3)are23％forbenzoylperoxideand1O％forsorbicacidTherecoveriesare910％forbenzoylperoxide觚d932％forsorbicacidThi