欢迎来到天天文库
浏览记录
ID:18039274
大小:159.08 KB
页数:3页
时间:2018-09-13
《氨基葡萄糖盐酸盐含量的hplc柱前衍生法测定》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、万方数据第28卷第9期分析测试学报VoL28No.92009年9月FENXICESHIXUEBAO(JournalofInstrumentalAnalysis)1081~1083氨基葡萄糖盐酸盐含量的HPLC柱前衍生法测定郑家概,王飞,农云军,苏流坤(中国广州分析测试中心广东省化学危害应急检测技术重点实验室,广东广州510070)摘要:建立了柱前衍生反相高效液相色谱法测定制剂及保健品中的氨基葡萄糖盐酸盐(GAH)的含量,利用邻苯二甲醛与氨基葡萄糖盐酸盐中的氨基进行柱前在线衍生化反应,C。。色谱柱洗脱,用荧光检测器(激发340nm,发射450nm)测定。流动相A为10
2、mmol·L。1Na2HP04一Nail2P04缓冲液(pH7.2,PBS),含0.5%(体积分数)四氢呋喃;流动相B为PBS一甲醇一乙腈(体积比50:35:15)。线性范围为1.0—100.0mg·L~,相关系数为0.9999,GAH的定量下限为1.0mg-L~,保留时间和峰面积的相对标准偏差分别为0.12%和1.69%,加标回收率为99%一101%。关键词:氨基葡萄糖;高效液相色谱;邻苯二甲醛;柱前衍生中图分类号:0657.72;TQ921.2文献标识码:A文章编号:1004—4957(2009)09—1081—03doi:10.3969/j.issn.1004
3、—4957.2009.09.021DeterminationofGlucosamineHydrochloridebyPre.columnDerivatizationandHighPerformanceLiquidChromatographyZHENGJia—gai,WANGFei,NONGYun-jun,SULiu—kun(GuangdongKeyLaboratoryofEmergencyChemicalTest,ChinaNationalAnalyticalCenter,Guangzhou510070,China)Abstract:Apre—columnderiv
4、atizationhighperformanceliquidchromatography(HPLC)methodwasdevelopedfordeterminationofglucosaminehydrochloride(GAH)inpharmaeeutiesandhealthyfoodbyusingo—phthalaldehyde(OPA)asderivatizationreagenttoreactwithaminogroupofGAH.ThesamplewasseparatedonaC18columnbyagradientelutionusing10mmol·L
5、~Na2HP04一NaH2P04sodiumphosphatebuffer(pH7.2,PBS)containing0.5%(byvolume)tetrahydrofuran(THF)asmobilephaseAandPBS—methanol—acetonitrile(50:35:15,byvolume)asmobilephaseB.GAHwasdetectedbyfluorospectrophotometeratexcitationwavelengthof340amandemis—sionwavelengthof450am.Theresultindicatedth
6、atagoodrelationshipwasobservedbetweenpeakareaandGAHconcentrationintherangeof1.0—100.0mg·L—withacorrelationcoefficientof0.9999.Thelimitofquantitationwas1.0mg·L~.TherelativestandarddeviationsofretentiontimeandpeakareaofGAHwere0.12%and1.69%,respectively.ThespikedrecoveriesofGAHwerebetween
7、99%and101%.Themethodwassimple,accurate,reliableandsensitive,andwassuitableforthedeterminationofGAHinpharrnaeeuticsandhealthyfood.Keywords:glucosaminehydroehloride(GAH);HPLC;o—phthalaldehyde;pre—columnderivatization氨基葡萄糖盐酸盐(GAH)称为葡胺糖盐酸盐,或盐酸氨基酸葡萄糖,学名2一氨基-2一脱氧-D一葡萄糖盐酸盐,是氨基葡萄糖的一种稳定化合物。它可
此文档下载收益归作者所有