AAC  >> Vol. 7 No. 2 (May 2017)

    Determination of Related Substances in Ex4c by UPLC

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杨欣茹,张贵民,马 丽,刘思光,赵亮亮:鲁南制药集团股份有限公司,山东 临沂

Ex4c超高效液相色谱法有关物质方法学验证Ex4c UPLC Related Substances Method Validation


目的:建立超高效液相色谱法(UPLC)测定聚乙二醇化促胰岛素分泌肽类似物原料Ex4c有关物质的方法。方法:采用Waters ACQUITY UPLC® Peptide CSH™C18 column (130 Å, 2.1 × 150 mm, 1.7 mm)为色谱柱;以0.05%三氟乙酸水溶液-四氢呋喃(9:1)为流动相A,0.05%三氟乙酸乙腈溶液-四氢呋喃(9:1)为流动相B;进行梯度洗脱。柱温45℃,检测波长为214 nm,进样量为2 ml,流速为0.3 mL∙min−1。结果:杂质A、B、C、D线性良好,相关系数r均 ≥ 0.995;4种杂质的检测限范围为4.0~5.6 ng;平均回收率为96.3%~101.1%。结论:经方法学验证,所建立的方法简便、准确、重复性好,可用于测定聚乙二醇化促胰岛素分泌肽类似物原料Ex4c的有关物质,有效地控制药品质量。

Objective: To establish a method for the determination of related substances in Ex4c (the raw ma-terial of the pegylation of glucagon-like peptide-1) by UPLC. Methods: The UPLC method was de-veloped by using a Waters ACQUITY UPLC® Peptide CSH™C18 column (130 Å, 2.1 × 150 mm, 1.7 mm) with a gradient elution system. The mobile phase A was 0.05% trifluoroacetic acid aqueous solution/tetrahydrofuran (9:1), and the mobile phase B was 0.05% trifluoroacetic acid in acetoni-trile/tetrahydrofuran (9:1). The column temperature was maintained at 45˚C while the detection wavelength setting at 214 nm. Furthermore, the sample injection was 2 ml via keeping a flow rate of 0.3 mL∙min−1. The developed method was validated. Results: The resolution between Ex4c and adjacent impurities, between Ex4C and the known impurities were greater than 1.5. All four known impurities exhibited good linear relationships with their related coefficients ≥ 0.995. And their detection limits ranged from 4.0 ng to 5.6 ng, comprising 96.3%~101.1% of recovered material. Conclusion: The validation results showed that the established method was simple, accurate and reproducible. It is capable of determinating impurities in Ex4c (the raw material of the pegylation of glucagon-like peptide-1) and can be effectively used for quality control of this drug.

杨欣茹, 张贵民, 马丽, 刘思光, 赵亮亮. 超高效液相色谱法测定Ex4c的有关物质[J]. 分析化学进展, 2017, 7(2): 92-101. https://doi.org/10.12677/AAC.2017.72013


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