离子色谱法测定硫酸依替米星注射液中抗氧剂亚硫酸钠的含量
发布时间:2018-02-27 13:43
本文关键词: 离子色谱法 抗氧剂 亚硫酸钠 硫酸依替米星注射液 出处:《中国药学杂志》2017年20期 论文类型:期刊论文
【摘要】:目的建立离子色谱法测定硫酸依替米星注射液中抗氧剂亚硫酸钠含量的方法。方法采用DionexIonPac AS11-HC(4mm×250 mm)色谱柱,DionexIonPac AG11-HC(4 mm×50 mm)保护柱,以氢氧化钾溶液为淋洗液进行梯度淋洗,流速1.0 mL·min~(-1),抑制电流99 mA,电导检测器检测,电导池温度35℃,柱温30℃。结果亚硫酸钠在8~80μg·mL~(-1)内线性关系良好;检测限为0.02μg·mL~(-1)(S/N=3),定量限为0.09μg·mL~(-1)(S/N=10)。结论本实验建立的方法快速、准确、重现性好,有助于制剂中亚硫酸钠的用量控制。亚硫酸钠作为抗氧剂有其使用的合理性,但样品中浓度过高,其处方量尚待进一步研究降低。
[Abstract]:Objective to establish a method for the determination of sodium sulfite in etimicin sulfate injection by ion chromatography. Methods the DionexIonPac AS11-HC(4mm 脳 250mm column was used to determine the content of sodium sulfite in etimicin sulfate injection. The protective column of Dionex IonPac AG11-HC(4 脳 50mm was used, and the solution of potassium hydroxide was used as eluent for gradient elution. The flow rate was 1.0 mL 路min ~ (-1) 路min ~ (-1), the inhibition current was 99 Ma, the conductivity detector was used to detect the conductivity cell temperature at 35 鈩,
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