检测方法 | 核心优势 | 固有局限 | 法规定位 |
光阻法 | 检测速度快,适合批量放行 | 无法区分微粒材质,漏检半透明蛋白颗粒 | 中国药典 0903 第一法 |
膜过滤显微计数法 | 可直接观察微粒,适合有色、浑浊制剂 | 人工操作,通量低,主观误差大 | 药典仲裁第二法 |
微流成像显微镜 | 自动成像,可区分蛋白、硅油、玻璃碎屑 | 不做法定放行判定,设备成本较高 | USP<1788.3> 正交补充技术 |
[1] 国家药典委员会。中国药典 2025 版四部通则 0903 不溶性微粒检查法,国家药典委员会官网,https://www.chp.org.cn
[2] USP <1788.3> Flow Imaging Method for the Determination of Subvisible Particulate Matter,美国药典官方数据库,https://doi.usp.org/USPNF/USPNF_M12537_02_01.html
[3] 郭莎,武刚,崔永霏.2 种型号微流成像分析仪测定微粒标准品及单抗样品的结果对比,药物分析杂志,2021‑04‑25,https://ywfzz.yiwu.org.cn/CN/10.16155/j.0254‑1793.0254‑1793.2021.04.013
[4] Sha Qiu. Subvisible Particle Analysis of 17 Monoclonal Antibodies Approved in China Using Flow Imaging and Light Obscuration,Journal of Pharmaceutical Sciences,2021‑09‑19,https://www.sciencedirect.com/science/article/pii/S0022354921002646已将微流成像法收录为亚可见微粒的正交表征手段,多用于超标样品根因分析,来源:USP,2021 年 5 月。国内生物制药实验室普遍采用 “光阻法放行,微流成像显微镜做异常溯源” 的组合策略。"}}},"align":"","folded":false}},"FksxfzBCFdIRX7clxCCaR115e5g":{"id":"FksxfzBCFdIRX7clxCCaR115e5g","snapshot":{"type":"heading2","parent_id":"PiG0dF0IToBhWHxGt0zcixDXn6s","comments":[],"revisions":[],"locked":false,"hidden":false,"author":"7592327302017452999","children":[],"text":{"apool":{"nextNum":1,"numToAttrib":{"0":["author","7592327302017452999"]}},"initialAttributedTexts":{"attribs":{"0":"*0+j"},"text":{"0":"微流成像显微镜核心原理与和传统方案对比"}}},"align":"","folded":false}},"DUX1f7luAdDRVXc4afupvILNBRZ":{"id":"DUX1f7luAdDRVXc4afupvILNBRZ","snapshot":{"type":"text","parent_id":"PiG0dF0IToBhWHxGt0zcixDXn6s","comments":[],"revisions":[],"locked":false,"hidden":false,"author":"7592327302017452999","children":[],"text":{"apool":{"nextNum":1,"numToAttrib":{"0":["author","7592327302017452999"]}},"initialAttributedTexts":{"attribs":{"0":"*0+2w"},"text":{"0":"微流成像显微镜的核心逻辑为样品液体匀速通过扁平微流池,高速显微相机连续抓拍流动中每一颗微粒图像,软件完成粒径统计、形态分类,同时留存原始图片档案,实现计数 + 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