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时间:2020-04-17
《顶空气相色谱法测定叶黄素中有机溶剂残留量.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、顶空气相色谱法测定叶黄素中有机溶剂残留量张艳纹,张莉华,马金萍,孙晓霞,许新德(浙江医药股份有限公司新昌制药厂,新昌312500)摘要:目的建立叶黄素中正己烷、乙醇和乙酸乙酯有机溶剂残留量的顶空气相色谱分析方法,并用该方法测定样品中的有机溶剂残留量。方法采用顶空气相色谱法,色谱柱为DB一624毛细管色谱柱(30mx0.53mmx3m),载气为氦气,检测器为氢火焰离子化检测器,以程序升温方式使正己烷、乙醇和乙酸乙酯达到完全分离,外标法定量。结果正己烷、乙醇和乙酸乙酯的线性范围分别为4.95~198mg/
2、L(r=0.99998)、8.295~331.8mg/L(r=0.99994)和8.325~333mg/L(r=0.99999);平均回收率范围为97.79%~103.21%,精密度(以相对标准偏差计,n=3)为1.47%~3.46%;检测限分别为0.09、0.83和0.33mg/L。利用本方法对实际样品叶黄素中有机溶剂残留量进行了测定,结果表明,该样品中含有正己烷和乙醇,其含量分别为12mg/kg和45mg/kg。结论本方法快速、灵敏、准确,适用于叶黄素中残留溶剂的检测。关键词:顶空气相色谱法;叶黄
3、素;有机溶剂;残留量中图分类号:0657.7+1文献标识码:A文章编号:1006—2513(2014)02—0243—03‘D一et一erm‘inat■■IOnOt,reS■ld■Ua■lOrgan0lcS00IventIs●In0IUt■e0in0DyheadspacegaschromatographyZHANGYan-wen,ZHANGLi-hua,MAJin-ping,SUNXiao-xia,XUXin-de(ZhejiangMedicineCo.,Ltd.,XinchangPharma.Fac
4、tory,Xinchang312500)Abstract:Objective:Amethodfordeterminationofthreekindsoforganicsolventsresidualsinluteinwasdevelopedbyheadspacegaschromatography,andthemethodwasappliedtoanalyzetheorganicsolventsresidualsinluteinsamples.Methods:AnDB一624capillarycolum
5、n(30m0.53mm3m),aflameionizationdetector,heliumandtheexternalstandardmethodwereusedfortheseparationandquantitativeanalysis.N—hexane,ethanolandethylacetatewereseparatedcompletelyusingtemperatureprogram.Resets:Thestandardcurvesshowedlinearpropertyintherang
6、eof4.95~198mg/L(r=0.99998)forn—hexane,8.295~331.8mg/L(r=0.99994)forethanoland8.325~333mg/L(r=0.99999)forethylacetate.Therecoveriesforthreeresidualorganicsolventswerebetween97.79%and103.21%withrelativestandarddeviations(RSDs)(n=3)of1.47%~3.46%.Limitsofde
7、tection(LOD)ofn—hexane,ethanolandethylacetatewere0.09,0.83and0.33mg/L,respectively.TheproposedmethodWasSUC—eessfullyappliedtodeterminetheresidualorganicsolventsinluteinsample.Theresultsshowedonlyn—hexaneandethanolwerefoundinthesampletllthecontentsof12mg
8、/kgand45mr/kg,respectively.Conclusion:Themethodisrapid,sensitiveandaccuratefordeterminationofsolventsresidualsinlutein.Keywords:headspacegaschromatography(HS—GC);lutein;organicsolvents;residualamount收稿日期:2013—12—10通讯作者作者简介:张艳纹(19
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