第 52 卷第 3 期Vol. 52 No. 3
2022 年 6 月Jun 2022

所属栏目:分析与测试

离子色谱法定量测定替硝唑原料药中亚硝酸盐
李 欣,杨 帅,颜 红,邢雪敏,刘葵葵* (山东省药学科学院 山东省化学药物重点实验室,山东 济南 250101)
摘 要:用离子色谱法测定替硝唑原料药中亚硝酸根的含量。色谱柱为Dionex IonpacTMAS18阴离子色谱柱(4 mm×250 mm),淋洗液为5 mmol/L氢氧化钾溶液,采用电导检测器。亚硝酸根浓度在0.014~0.443 μg/mL范围内呈良好的线性关系,平均回收率为101.10%。方法简便、准确、快速,适用于替硝唑原料药中亚硝酸根的含量测定。
关键词:离子色谱法;替硝唑;亚硝酸根;含量测定
中图分类号:O657.7  文献标识码:A  文章编号:1009-9212(2022)03-0085-04
Determination of Nitrite in Tinidazole by Ion Chromatography
LI Xin, YANG Shuai, YAN Hong, XING Xue-min, LIU Kui-kui* (Key Laboratory of Chemical Drug Research of Shandong Province, Shandong Academy of Pharmaceutical Sciences, Jinan 250101, China)
Abstract:To determine the content of nitrite in Tinidazole by ion chromatograph, Dionex IonpacTMAS18 Anion Column (4 mm×250 mm) was used using KOH solution (5 mmol/L) as eluent and the conductance detector. Experimental data showed that a good linearity was obtained at a nitrite concentration range of 0.014~0.443 μg/mL; and an average recovery of 101.1% was obtained. This method is accurate and fast, which can be used for the determination of nitrite in Tinidazole.
Key words:ion chromatography; Tinidazole; nitrite; content determination
作者简介:李 欣(1987—),女,山东济南人,工程师,研究方向:新药研发(E-mail:252097030@qq.com)。
联 系 人:刘葵葵,高级工程师。研究方向:新药研发(E-mail:34692577@qq.com)。
收稿日期:2022-03-04