食品中三聚氰胺、農(nóng)藥和環(huán)境雌激素的色譜分析.pdf

1、河北大學(xué)碩士學(xué)位論文食品中三聚氰胺、農(nóng)藥和環(huán)境雌激素的色譜分析姓名：張明翠申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：分析化學(xué)指導(dǎo)教師：周建科20100501AbstractIIAbstractInthedecadespeoplepaymeattentiononthequalitysafetyoffood.Atthebeginningofthepaperanalyticresearchprogressaboutmelaminecarbamateinsect

2、icidesenvironmentalestrogensinfoodathomeabroadwasreviewedincludingthemethodsofanalyticdetection.Inchapter2highperfmanceliquidchromatographywasappliedtodeterminemelamineinduckmeat.TheimpactsofpHpercentageofacetonitrileion

3、pairreagentspeciesonanalysisresultwereinvestigated.Thelinearrangewas0.2540mgLwiththecrelationcoefficientof0.9999.Thedetectionlimitwas0.056mgkg.Theaveragerecoveryrangedfrom81.9%to83.5%.Relativestarddeviations(RSDs)were1.8

4、%2.5%.Inchapter3matrixsolidphasedispersiontechnologywasusedfsamplepretreatment.CarbamateinsecticidesphenoliccompoundsweredeterminedbyHPLCUV.Thekindsofdispersantstheratioofweightbetweendispersantsamplethekindsofeluentvolu

5、meoftheeluentwereinvestigated.Thelinearrangeoftsumacidecarbarylirimicarb1naphtholwerebetween0.0220mgLwiththecrelationcoefficientof0.99920.9998.Therangeofthedetectionlimitwas0.020.03mgkg.Theaveragerecoveryrangedfrom97.6%t

6、o105.3%.RSDswere2.3%2.7%.Phenolpcresolocresolinhoneythelinearrangeswere0.0416.3mgLwiththecrelationcoefficientof0.99960.9998.Thedetectionlimitsrangeswere0.050.06mgkg.Theaveragerecoveryfthethreephenoliccompoundsrangedfrom8

7、6.9%to90.9%.RSDwas2.3%2.3%2.5%respectively.Inchapter4highperfmanceliquidchromatographywasusedfdeterminationofestradiolestronediethylstilbestrolinsoymilkpowder.Thefatwasremovedbypetroleumether.Acetonitrilewasusedasextract

8、ant.DiamonsilC18columnwasused.Mobilphasewasacetonitrilewater(theratioofvolumewas55:45).Detectwassetup230nm.Thelinearrangewas0.0250mgLwithacrelationcoefficientof0.9999.Thelimitofdetectionwas0.02mgL0.01mgL0.01mgLrespective