高效液相色谱法测定氨基葡萄糖拟肽的含量  

Detection of glucosamine peptide mimetics by HPLC

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作  者:贺小玲[1,2] 洪碧红[2,3] 陈永强[2] 易瑞灶[2] 

机构地区:[1]集美大学食品与生物工程学院,福建厦门361021 [2]国家海洋局第三海洋研究所,福建厦门361005 [3]厦门大学化学化工学院,福建厦门361005

出  处:《中国海洋药物》2015年第5期77-80,共4页Chinese Journal of Marine Drugs

基  金:海洋公益性行业科研专项(201405016);厦门南方海洋研究中心(13GYY001NF05)资助

摘  要:目的采用Waters2695型高效液相色谱仪建立定量分析氨基葡萄糖拟肽的方法。方法以Hyper—silODs2(4.6mm×250mm,5μm)为分离柱,流动相为5mmoL/LpH=7.5的磷酸二氢钾-乙腈体系(70:30,体积分数),检测波长为200nm,流速为1.0mL/min。结果4种物质的浓度分别在25~800μg/mL(r=0.9999,TAG-Phe),40~1000/μg/mL(r=0.9993,TAG-Leu),27~600μg/ml。(r=0.9991,TAG-Glu)及50-600/μg/mL(r=0.9991,TAG-Val)时呈良好的线性关系,对应的定量限(S/N=10)分别为:20.00,35.54,25.oO和49.00/μg/mL。检测限(S/N=3)依次为:4.50,15.30,13.45和19.30μg/mL。平均回收率在98.75%~101.56%之间,日内及日间精密度均小于1.37%。结论该方法简便,快速,专属性强,适用于氨基葡萄糖拟肽类物质的含量测定。Objective To establish a method to quantitatively analyze glucosamine peptide mimetics with HPLC. Methods Samples were separated on a Hypersil ODS2 column(5 μm, 4. 6 mm× 250 mm), the mobile phase consisted of 5 mmoL potassium dihydrogen phosphate-acetonitrile (pH= 7. 5,V/V). The flow rate was 1. 0 mL/min. Results The standard curves of four samples were respectively linear over the range in 25-800. 00 μg/mL(r=O. 999 9,TAG-Phe), 40-1 000 fig/mL(r=0. 999 3, TAG-Leu), 27-600.00μg/mL(r=0. 999 1, TAG-Glu) and 50 - 600. 00μg /mL(r=0. 999 1, TAG-Val). The limits of quantitation were 20.00, 35.54, 25.00 and 49.00 #g/mL in turn (S/N=10). And limits of detection were 4. 50, 15.30, 13. 45 and 19. 30 μg /mL(S/N=3). The average recovery rate of four samples was 98. 75%-101.56%, day and inter-day precision were less than 1.37%. Conclusion The method was simple, rapid, specific, and suitable for the determination of glucosamine peptide mimetic.

关 键 词:高效液相色谱法 氨基葡萄糖拟肽 含量 

分 类 号:R917[医药卫生—药物分析学]

 

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