642023年第1期(总第165期)基于正交试验法探究新制氢氧化铜与葡萄糖反应的最佳条件潘振蓓1,张超1,李雨甜2,张小兰1,余焕焕1,李燕红1,叶青1(1.上饶师范学院,江西上饶,334001;2.无锡光华学校,江苏无锡,214000)摘要:新制氢氧化铜与葡萄糖的反应是一个操作简单、现象明显的检验葡萄糖的实验,但在实际操作时会出现实验现象不理想的情况。为了得到最佳实验效果,通过对新制氢氧化铜与葡萄糖的反应进行正交试验设计,以氢氧化钠浓度,葡萄糖浓度,硫酸铜浓度3个因素为变量,设计三因素五水平实验,以反应过程中溶液的变色情况和反应后的沉淀情况作为评判标准,探究新制氢氧化铜与葡萄糖反应的主要影响因素及最佳实验条件。最终得到新制氢氧化铜和葡萄糖的反应的主要影响因素为:葡萄糖浓度>氢氧化钠浓度>硫酸铜浓度;取得最佳实验效果的实验条件为:25%浓度的氢氧化钠2mL,6%浓度的硫酸铜5滴,3.5%浓度的葡萄糖3滴。关键词:葡萄糖的检验;正交试验设计;最佳条件中图分类号:R943文献标志码:A文章编号:1008-3103(2023)01-0001-04InvestigationofOptimalConditionsfortheReactionofNewlyPreparedCopperHydroxidewithGlucosebasedonOrthogonalTestMethodPanZhen-bei1,ZhangChao1,LiYu-tian2,ZhangXiao-lan1,YuHuan-huan1,LiYan-hong1,YeQing1(1.ShangraoNormalCollege,ShangraoJiangxi334001,China;2.WuxiGuanghuaSchool,WuxiJiangsu214000,China)Abstract:Thereactionoffreshlypreparedcopperhydroxidewithglucoseisasimpleandobviousexperimenttotestglucose,buttheexperimentalphenomenonmaybeunsatisfactoryinpractice.Inordertoobtainthebestexperimentaleffectthatthediscolorationofthesolutionduringthereactionisblue-lightblue-brickredandtheprecipitationsituationpresentsbrickred,thereactionoffreshlypreparedcopperhydroxidewithglucosewasdesignedbyanorthogonalexperimentwiththreefactors,sodiumhydroxideconcentration,glucoseconcentrationandcoppersulfateconcentrationasvariables,andathree-factorfive-levelThemaininfluencingfactorsandthebestexperimentalconditionsofthereactionbetweenthenewlypreparedcopperhydroxideandglucosewereinvestigatedbyusingthediscolorationofthesolutionduringthereactionandtheprecipitationafterthereactionasthejudgingcriteria.Themaininfluencingfactorsofthere...