离子色谱电导法测定头孢噻肟钠中钠离子含量  

Determination of Sodium Ion in Cefotaxime Sodium by Ion Chromatography

作　　者：陶晓莎 田冶[2] 刘万卉[1] 尹利辉[2] 许明哲[2] TAO Xiao-Sha;TIAN Ye;LIU Wan-Hui;YIN Li-Hui;XU Ming-Zhe(Yantai University,Shandong Yantai 264003,China;National Institute for Food and Drug Control,Beijing 102629,China)

机构地区：[1]烟台大学,山东烟台264003 [2]中国食品药品检定研究院,北京102629

出　　处：《中国药物评价》2021年第6期504-506,共3页Chinese Journal of Drug Evaluation

摘　　要：目的:建立离子色谱法测定头孢噻肟钠溶液中钠离子的含量。方法:采用离子色谱法,DionexIonPac^(TM) CS12A(4×250 mm,5μm)阳离子交换色谱柱,以甲基磺酸为淋洗液,流速为1 mL·min^(-1),柱温为30℃,电导检测器检测,测定头孢噻肟钠中钠离子的含量。结果:该方法在0.05~50μg·mL^(-1)浓度范围内线性良好,(r^(2)=0.9998);检测限为0.001μg·mL^(-1),定量限为0.005μg·mL^(-1);平均加样回收率为分别为98.6%,RSD为2.5%(n=9)。结论:该方法准确、简单、灵敏,可用于测定头孢噻肟钠中钠离子含量的测定。The method for content determination of sodium ion in cefotaxime sodium by ion chromatography was developed.Analysis was performed on a DionexIonPac^(TM) CS12A column(250 mm×4 mm,5μm).The elutriant was methyl sulfonic acid solution.The flow rate was 1.0 mL·min^(-1).The column temperature was set at 30℃.Inhibitory electrical conductivity detector was used.The results showed that a good separation was accepted between sodium ion and other conventional anions.The standard curve was linear in the range of 0.05~50μg·mL^(-1)(r^(2)=0.9998).The average recovery was 98.6%(n=9,RSD=2.5%).This method was accurate,sensitive,specific and was suitable for the determination of sodium ion content in cefotaxime sodium.

关 键 词：离子色谱 头孢噻肟钠 钠离子 

分 类 号：R927.2[医药卫生—药学]