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作 者:祝贺[1,2] 赵小亮[1,2] 吕友晶[1,2] 于广利[1,2]
机构地区:[1]海洋药物教育部重点实验室,中国海洋大学,青岛266003 [2]山东省糖科学与糖工程重点实验室,中国海洋大学,青岛266003
出 处:《药物分析杂志》2014年第4期639-643,共5页Chinese Journal of Pharmaceutical Analysis
基 金:国家自然科学基金项目(No.31070724);教育部长江学者与创新团队项目(No.IRT0944)
摘 要:目的:建立高效阴离子交换色谱法测定那屈肝素钙中2,5-脱水甘露醇和葡萄糖胺。方法:样品在3mol·L^-1三氟乙酸110℃下水解8h.旋蒸除酸后用CarbopacPA20(150mm×3mm)阴离子交换柱在流速0.4mL·min。和30℃下,以15mmol·L^-1氢氧化钠洗脱10min后用15mmol·L^-1氢氧化钠-150mmol·L^-1醋酸钠溶液洗脱10min,脉冲安培检测器检测。结果:2,5-脱水甘露醇和葡萄糖胺线性范围分别为1~50μg·mL^-1(r=0.9997)和4.2~124.6μg·mL^-1(r=0.9994),检测限分别为163.0ng·mL^-1和327.5ng·mL^-1,回收率(n=6)分别为102.4%和99.5%,RSD均小于3.0%。结论:该法简单、灵敏、可靠,可用于那屈肝素钙的质量控制。Objective: To develop a determination method for 2,5 - anhydro mannitol and glucosamine in nadropa- rin calcium by high performance anion exchange chromatography. Method:The sample was completely hydrolyzed by 3 mol·L^-1 trifluoroacetic acid at 110℃ for 8 hours, deacidified by rotating evaporation, and then analyzed on an analytical column of CarboPae PA20 (150 mm ×3 ram) under 30 ℃ and with a flow rate at 0.4 mL·L^-1 The elution was conducted at 15 mmol ~ L-lsodium hydroxide for l0 min, and then 15 mmol·L^-1sodium hydrox- ide -150 mmol L^-1 sodium acetate for another 10 min. The whole process was monitored by pulsed amperometric detector. Results: The linear ranges of the method for 2,5 - anhydro mannitol and glucosamine were 1 - 50 μg·mL^-1 ( r = 0. 9997 ) and 4.2 - 124.6 μg·mL^-1 ( r = 0. 9994 ), detection limits were 163.0 ng · mL^ - 1 and 327.5 ng · mL^- 1 ( based on three times baseline noise) , average recoveries ( n = 6 ) were 102.4% ( RSD = 2.2% ) and 99.5 % ( RSD = 2.5 % ) , respectively. Conclusion : The established method is simple, sensitive, and reliable, which can be applied to the quality control of nadroparin calcium.
关 键 词:高效阴离子交换色谱 脉冲安培检测 那屈肝素钙 2 5-脱水甘露醇 葡萄糖胺
分 类 号:R917[医药卫生—药物分析学]
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