USP葡萄糖译文

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1、Dextrose葡萄糖C6H12O6·H2O198.17D-Glucose,monohydrate.D-Glucosemonohydrate[5996-10-1].Anhydrous180.16[50-99-7].C6H12O6·H2O分子量：198.17C6H12O6分子量：180.16»Dextroseisasugarusuallyobtainedbythehydrolysisofstarch.Itcontainsonemoleculeofwaterofhydrationorisanhydrous.葡萄糖是

2、淀粉水解而得到的一种糖，常以一水葡萄糖或无水葡萄糖的形式存在。Packagingandstorage—Preserveinwell-closedcontainers.包装与贮存：本品保存在密闭容器中。Labeling—Labelittoindicatewhetheritishydrousoranhydrous.注释：注明其为无水状态或水合物状态。Identification—Addafewdropsofasolution(1in20)to5mLofhotalkalinecuprictartrateTS:acop

3、iousredprecipitateofcuprousoxideisformed.鉴别：加本品溶液（1比20）数滴于5mL热的碱性酒石酸铜试剂中，会形成大量红色的氧化亚铜沉淀。Colorofsolution—Dissolve25ginwatertomake50.0mLofsolution:thesolutionhasnomorecolorthanasolutionpreparedbymixing1.0mLofcobaltouschlorideCS,3.0mLofferricchlorideCS,and2.0mL

4、ofcupricsulfateCSwithwatertomake10mL,anddiluting3mLofthissolutionwithwaterto50mL.Makethecomparisonbyviewingthesolutionsdownwardinmatchedcolor-comparisontubesagainstawhitesurface.溶液颜色：取本品25g，用水溶解配制成50mL的溶液，该溶液颜色不得深于对照液颜色（将1.0mL氯化钴溶液、3.0mL氯化铁溶液和2.0mL硫酸铜溶液混匀后用水

5、配制成10mL，取3mL该溶液用水稀释至50mL即得到对照液）。通过在白色背景下观察溶液下流至相应比色管来进行颜色对比分析。Specificrotation781S:between+52.6and+53.2.Testsolution:100mgpermL,in0.012Nammoniumhydroxide.比旋度：应在+52.6°and+53.2°之间，用100mg/mL的本品溶液与0.012N的氨试液反应测定。Acidity—Dissolve5.0gin50mLofcarbondioxide-freewate

6、r.AddphenolphthaleinTS,andtitratewith0.020Nsodiumhydroxidetotheproductionofadistinctpinkcolor:notmorethan0.30mLisrequiredforneutralization.酸度：取本品5.0g，用不含CO2的水溶解稀释至50mL，滴加酚酞作为指示剂，用0.020N的氢氧化钠溶液滴定至出现明显粉红色：中和反应要求滴定量不应多余0.30mL。Water,MethodIII921—Dryitat105for16h

7、ours:thehydrousformlosesbetween7.5%and9.5%ofitsweight,andtheanhydrousformlosesnotmorethan0.5%ofitsweight.水分：将本品在105℃条件下烘干16小时，要求水分损失率应在7.5%至9.5%之间，非水分损耗率不得高于0.5%。Residueonignition281:notmorethan0.1%.灰分：不得高于0.1%。Chloride221—A2.0-gportionshowsnomorechloridetha

8、ncorrespondsto0.50mLof0.020Nhydrochloricacid(0.018%).氯化物：2.0g本品中氯化物含量不得高于0.50mL的0.020N盐酸（0.018%）的氯化物含量。Sulfate221—A2.0-gportionshowsnomoresulfatethancorrespondsto0.50mLof0.020Nsulfuricacid(0.025