CN Patent

CN110161168B — 唑来膦酸及其杂质的高效液相色谱检测方法

Assigned to Sichuan Kelun Pharmaceutical Research Institute Co Ltd · Expires 2022-12-20 · 3y expired

What this patent protects

本发明提供了一种唑来膦酸及其杂质的高效液相色谱检测方法,其包括以下色谱条件:所述固定相为辛烷基硅烷键合硅胶或十八烷基硅烷键合硅胶为填充剂的反相色谱柱;所述流动相为缓冲液与有机溶剂的混合液,其中缓冲液为浓度为5‑18mmol/L的焦磷酸钠和四丁基硫酸氢铵的混合溶液或浓度为5‑18mmol/L的焦磷酸钠和四己基硫酸氢铵的混合溶液,缓冲液pH值为7.5‑9.0,有机溶剂为甲醇或乙腈。本发明提供的检测方法能够实现唑来膦酸及其杂质的有效分离和检测,解决了化合物保留和色谱峰拖尾问题。

USPTO Abstract

本发明提供了一种唑来膦酸及其杂质的高效液相色谱检测方法,其包括以下色谱条件:所述固定相为辛烷基硅烷键合硅胶或十八烷基硅烷键合硅胶为填充剂的反相色谱柱;所述流动相为缓冲液与有机溶剂的混合液,其中缓冲液为浓度为5‑18mmol/L的焦磷酸钠和四丁基硫酸氢铵的混合溶液或浓度为5‑18mmol/L的焦磷酸钠和四己基硫酸氢铵的混合溶液,缓冲液pH值为7.5‑9.0,有机溶剂为甲醇或乙腈。本发明提供的检测方法能够实现唑来膦酸及其杂质的有效分离和检测,解决了化合物保留和色谱峰拖尾问题。

Drugs covered by this patent

Patent Metadata

Patent number
CN110161168B
Jurisdiction
CN
Classification
Expires
2022-12-20
Drug substance claim
No
Drug product claim
No
Assignee
Sichuan Kelun Pharmaceutical Research Institute Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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