CN Patent

CN110687229A — 一种双氯芬酸钠原料及其制剂中有关物质的分析方法

Assigned to Shandong Academy of Pharmaceutical Sciences · Expires 2020-01-14 · 6y expired

What this patent protects

本发明公开了一种测定双氯芬酸钠原料及其制剂中有关物质的分析方法，采用超高效液相色谱法，其色谱条件包括：色谱柱为十八烷基硅烷键合硅胶色谱柱，以乙腈为流动相A，以醋酸铵溶液为流动相B，检测波长为254nm，进行梯度洗脱。本发明能准确、高效的测定双氯芬酸钠原料及其制剂中杂质D的含量，同时能够测定杂质A、B、C、E、F的存在和/或含量。

USPTO Abstract

本发明公开了一种测定双氯芬酸钠原料及其制剂中有关物质的分析方法，采用超高效液相色谱法，其色谱条件包括：色谱柱为十八烷基硅烷键合硅胶色谱柱，以乙腈为流动相A，以醋酸铵溶液为流动相B，检测波长为254nm，进行梯度洗脱。本发明能准确、高效的测定双氯芬酸钠原料及其制剂中杂质D的含量，同时能够测定杂质A、B、C、E、F的存在和/或含量。

Drugs covered by this patent

Patent Metadata

Patent number
CN110687229A
Jurisdiction
CN
Classification
—
Expires
2020-01-14
Drug substance claim
No
Drug product claim
No
Assignee
Shandong Academy of Pharmaceutical Sciences
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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.