河南理工大学应急管理学院 Colorimetric tube mLglass. analysisstep preparation samplesolution: precision weighing approximately 0.01 g~1.0 sample(accurate samplingvolume. Unit ml (mI. sample,expressed atomicweight 55.84--Fe;2--conversion factors. precisionunder repeatability conditions absolutevalue twoindependent test results shall arithmeticalaverage 10%.Food additives sweet agent [saccharin sodium, sweetpigment, acetylsulfa acid potassium (Ann game honey], coloringagent testaccording focusintroduced anti-oxidant detection(BHA, TBHQ),]GB2760 GB/T5009.30, oftenusing anti-oxidantmain has BHA, TBHQtert-butyl hydroxy fennel ether (BHA) 2,6-II tert-butyl cresol(BHT tert-butylhydroxy anisole (BHA) 2,6-di -tert-butyl-p-cresol (BHT) testing GB/T5009.30vapor phase chromatography thin-layerchromatography, sectionfocuses Colorimetry.Principle steamdistillation sample.separate BHT,methanol absorption, o-anisidine sodiumnitrite solution orange-red, extracted chloroform,compared standardsizing. anhydrouscalcium chloride reagent. ethanol.Chloroform. Methanol (50%). Sodium nitrite solution darkplace. O-anisidine solution; weighing 125 mg o-anisidine secondBrown volumetric flask, add 25mL methanol 50mgactivated carbon, shake 学院:应急管理学院班级:安管10-1 姓名:蒲蕾学号:311019020106 河南理工大学应急管理 学院 Colorimetric tube mLglass. analysisstep preparation samplesolution: precision weighing approximately 0.01 g~1.0 sample(accurate samplingvolume. Unit ml (mI. sample,expressed atomicweight 55.84--Fe;2--conversion factors. precisionunder repeatability conditions absolutevalue twoindependent test results shall arithmeticalaverage 10%.Food additives sweet agent [saccharin sodium, sweetpigment, acetylsulfa acid potassium (Ann game honey], coloringagent testaccording focusintroduced anti-oxidant detection(BHA, TBHQ),]GB2760 GB/T5009.30, oftenusing anti-oxidantmain has BHA, TBHQtert-butyl hydroxy fennel ether (BHA) 2,6-II tert-butyl cresol(BHT tert-butylhydroxy anisole (BHA) 2,6-di -tert-butyl-p-cresol (BHT) testing GB/T5009.30vapor phase chromatography thin-layerchromatography, sectionfocuses Colorimetry.Principle steamdistillation sample.separate BHT,methanol absorption, o-anisidine sodiumnitrite solution orange-red, extracted chloroform,compared standardsizing. anhydrouscalcium chloride reagent. ethanol.Chloroform. Methanol (50%). Sodium nitrite solution darkplace. O-anisidine solution; weighing 125 mg o-anisidine secondBrown volumetric flask, add 25mL methanol 50mgactivated carbon, shake