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中国药物评价 ›› 2025, Vol. 42 ›› Issue (3): 196-199.

• 评价技术与方法 • 上一篇    下一篇

HPLC-SEC法测定中药注射剂中残留大分子蛋白含量的研究

  齐越1, 鄢长余2, 姜范成2, 夏春鹏3, 赵月然2*   

  1. 1.江苏省徐州医药高等职业学校药学技术系, 江苏 徐州 221116;
    2.大连市检验检测认证技术服务中心, 辽宁 大连 116021;
    3. 辽宁中医药大学药学院, 辽宁 大连 116600
  • 收稿日期:2025-05-08 修回日期:2025-05-27 接受日期:2025-07-29 出版日期:2025-06-28 发布日期:2025-08-05
  • 基金资助:
    江苏省药品监督管理局科研计划课题(202305)

Determination of Macromolecular Protein Residues in Traditional Chinese Medicine Injections by HPLC-SEC

QI Yue1, YAN Changyu2, JIANG Fancheng2, XIA Chunpeng3, ZHAO Yueran2*   

  1. 1.Department of Pharmacy, Jiangsu Provincial Xuzhou Pharmaceutical Vocational College, Jiangsu Xuzhou 221116, China;
    2.Dalian Center For Certification and Food and Drug Control, Liaoning Dalian 116021, China;
    3.School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Liaoning Dalian 116600, China
  • Received:2025-05-08 Revised:2025-05-27 Accepted:2025-07-29 Online:2025-06-28 Published:2025-08-05

摘要: 目的:建立高效液相色谱-体积排阻法 (HPLC-SEC)测定中药注射剂中大分子蛋白残留量的检查方法。方法:采用TSK GEL G2000SWxl (7.8 mm×300 mm,5 μm)凝胶色谱柱,以乙腈-0.08%三氟乙酸(5∶95, v/v)为流动相,流速0.8 mL·min-1,柱温35 ℃,检测波长214 nm。结果:选用蛋白对照品血清白蛋白(牛)、溶菌酶、人胰岛素、胸腺肽α1进行方法验证,其分子量分布为66 400~3 108 Da。以溶菌酶为对照品计算中药注射液中大分子蛋白的相对含量,结果显示,溶菌酶在0.381 2~3.812 μg浓度范围内线性关系良好(r>0.999),精密度、稳定性、重现性良好(RSD≤2.0%)。对5批中药注射剂样品进行测定,其中2批样品检出大分子蛋白残留,含量为25.7 μg·mL-1和32.6 μg·mL-1。结论:建立的HPLC-SEC方法操作简单,灵敏度高,重复性好,适用于中药注射液中大分子蛋白的限量检测,为控制中药注射液质量,提高其临床用药安全性提供了有效手段。该方法可为中药注射剂制备工艺优化和质量标准提高提供参考依据,具有较好的应用价值。

关键词: font-size:medium, ">高效液相色谱-体积排阻法;中药注射剂;离心过滤;大分子蛋白残留;溶菌酶

Abstract: Objective: To establish a HPLC-SEC method for determination of macromolecular protein residues in traditional Chinese medicine injections(TCMIs). Methods: The analysis was performed on the TSK GEL G2000SWxl (7.8 mm×300 mm, 5 μm) column at the temperature of 35 ℃.The mobile phase was composed of acetonitrile and 0.08% trifluoroacetic acid(5∶95, v/v). The flow rate was 0.8 mL·min-1 and the detection wavelength was set at 214 nm. Results: The protein reference substances were used to validate the method, including serum albumin (bovine), lysozyme, insulin human and thymic peptide α1. The molecular weight range of the proteins was 66 400-3 108 Da. The linear relationship was good in the range of 0.381 2-3.812 μg (r>0.999) as lysozyme was used as the reference substance to calculate the relative content. The precision, repeatability, and stability of the method were good(RSD≤2.0%). The relative content of macromolecular protein was detected in 2 out of 5 batches of TCMIs and the content was 25.7 μg·mL-1 and 32.6 μg·mL-1. Conclusion: The HPLC-SEC method was simple, sensitive and reproducible, and can be used for the determination of macromolecular protein residues in TCMIs. It provided an effective method for governing the quality of TCMIs.

Key words: font-size:medium, ">High-performance size exclusion chromatography (HPLC-SEC); Traditional chinese medicine injections (TCMIs); Centrifugal filter; Macromolecular protein residues; Lysozyme

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