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1、乙醇的檢測乙醇C2H6O46.07Ethanol. EthylalcoholCAS#:[64-17-5].應用：饮料汽车燃料消毒剂有机合成原料溶剂稀释剂萃取剂洗涤剂Spectrum乙醇品種A2176Alcohol,Denatured,190ProofA1038Alcohol,Anhydrous,CompletelyDenaturedA1040ReagentAlcohol,Denatured,Reagent,ACSE1020EthylAlcohol,190Proof,FCCE1028EthylAlcohol,Absolute
2、,200Proof,Reagent,ACSE1029EthylAlcohol,190Proof,Reagent,ACSE1068DehydratedAlcohol,200Proof,USP,EP,BPE1421Alcohol,190Proof,BiotechGradeE1424DehydratedAlcohol,200Proof,BiotechGradeET107DehydratedAlcohol,200Proof,Undenatured,USPET108Alcohol,190Proof,USPHP612ReagentAl
3、cohol,Denatured,ExceedsA.C.S.Specifications,HPLCGradeHS002ReagentAlcohol,Denatured,HistologicalGradeEX0278Alcohol,Denatured,OmniSolv(R)EX0289EthylAlcohol,MultiPharm,200Proof,EP,JP,USPEX0290EthylAlcohol,Pure,190Proof,HPLCGrade*Proof:酒精纯度,一个酒精纯度相当于0.5％的酒精含量.乙醇檢測的應用相
4、對密度法USP<841>,SpecificGravity.ET107,Dehydratedalcohol,200proof,undenatured,USP蒸餾法USP<611>,MethodⅠ.中國藥典2005版一部：附錄ⅨM乙醇量測定法Ⅱa,b,c氣相色譜法（GC）USP<611>,Alcoholdetermination,MethodⅡ.BE115,BelladonnaTinctureACS10th,Ethylalcohol.HP612，ReagentAlcohol,Denatured,ExceedsA.C.S.Spe
5、cifications,HPLCGradeUSP<467>,Residualsolvents,class3.中國藥典2010版二部：附錄ⅦE乙醇量測定法中國藥典2005版一部：附錄ⅨM乙醇量測定法Ⅰ相對密度法-USP<841>,SpecificGravity,methodⅠET107,Dehydratedalcohol,200proof,undenatured,USPAlcoholcontent:≧99.2%,byweight;≧99.5%,byvolume,at15.56℃.原理:25℃下,相同體積乙醇和水的重量比值,折
6、算成15.56℃下乙醇的重量含量或體積含量.方法:使用同一比重瓶，先將先将一定體積的燒開過的蒸餾水放入其中,分別稱量25℃下空瓶和水裝入后的總重量,兩者之差就是25℃下水的重量.同理測量25℃下乙醇的重量.乙醇和水的重量比为25℃下乙醇的比重.通過查找USPreferencetable–Alcoholometrictable中的數據，確定15.56℃下乙醇的體積含量或者重量含量.比重瓶USPreferencetable–Alcoholometrictable12345678percentagespecificgravity
7、percentagespecificgravitybyvolumnat15.56℃byweightat25℃at15.56℃byvolumnat15.56℃byweightat25℃at15.56℃10.800.99850.99855143.430.92690.932221.590.99700.99705244.370.92480.930232.390.99560.99565345.330.92280.928243.190.99410.99425446.280.92070.926254.000.99270.99285547
8、.250.91850.924164.800.99140.99155648.210.91640.922075.610.99010.99025749.190.91420.919986.420.98880.98905850.170.91200.917797.230.98750.98785951.150.909
