用头空间气体染色学分析方法确定洛萨坦酸原料中的六种残留溶剂
Vanessa B de Camargo1, Cássia V Garcia1
1Programa De Pós-Graduação em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal do Rio Grande Do Sul (UFRGS). Av. Ipiranga, Porto, Alegre/RS, Brazil.
Journal of separation science
|November 13, 2025
概括
一种新的头部气体染色法有效量化了沙原料中的六种残留溶剂. 这种经过验证的方法通过检测异醇和三乙胺等杂质来确保药品的安全.
科学领域:
- 药品分析 药品分析
- 分析化学 分析化学
- 质量控制 质量控制 质量控制
背景情况:
- 剩余溶剂 (有机挥发性杂质) 构成有毒风险,影响制药品质量和稳定性.
- 控制这些杂质对于确保药品的安全性和有效性至关重要.
- 洛萨坦是一种活性药物成分,需要对残留溶剂进行严格的测试.
研究的目的:
- 开发和验证一个Headspace气色谱 (HS-GC) 方法,用于确定洛萨坦原料中的六种特定残留溶剂.
- 确保该方法可靠,准确,适合常规质量控制.
主要方法:
- 方法开发涉及优化样品稀释剂 (二甲基硫氧化物),头部空间条件 (在100°C化30分钟) 和色谱参数 (DB-624列,编程温度,28分钟运行时间,1:5分裂比).
- 根据巴西的指导方针进行了验证,评估了选择性,敏感性,精度,线性,准确性和稳定性.
- 头部气体色谱被用于剩余溶剂的定量分析.
主要成果:
- 开发的HS-GC方法被发现是选择性的,敏感的 (LOQ<10%的ICH极限),精确的 (RSD ≤10.0%),线性 (r ≥0.999),准确的 (95.98%109.40%的回收率) 和稳固的.
- 对洛萨坦原料批次的分析仅检测到异醇和三乙烯胺.
- 结果表明,净化过程在去除大多数与合成相关的溶剂方面的有效性.
结论:
- 成功开发了一种简单,可靠和验证的HS-GC方法,用于确定洛萨坦中的六种残留溶剂.
- 该方法为质量控制目的提供了足够的灵敏度和准确性.
- 在分析的批量中仅检测到最小的残留溶剂表明了高效的制造控制.
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