CN Patent

CN115184486B — 一种高效液相色谱法检测磷酸二氨基吡啶有关物质的方法

Assigned to Hebei Yipin Biomedical Co ltd · Expires 2023-07-18 · 3y expired

What this patent protects

本发明提供了一种利用高效液相色谱法检测磷酸二氨基吡啶有关物质的方法,该方法包括以下步骤:a.取磷酸二氨基吡啶供试品,用水、流动相或有机溶剂的水溶液1,配置成含有磷酸二氨基吡啶的溶液2,b.取步骤a所得溶液2,注入高效液相色谱仪检测,其中,所述有关物质为Ⅰ:4‑羟基吡啶、Ⅱ:4‑羟基‑3‑硝基吡啶、Ⅲ:4‑氨基‑3‑硝基吡啶和Ⅳ:4‑氨基吡啶,步骤b的高效液相色谱条件为梯度洗脱。

USPTO Abstract

本发明提供了一种利用高效液相色谱法检测磷酸二氨基吡啶有关物质的方法,该方法包括以下步骤:a.取磷酸二氨基吡啶供试品,用水、流动相或有机溶剂的水溶液1,配置成含有磷酸二氨基吡啶的溶液2,b.取步骤a所得溶液2,注入高效液相色谱仪检测,其中,所述有关物质为Ⅰ:4‑羟基吡啶、Ⅱ:4‑羟基‑3‑硝基吡啶、Ⅲ:4‑氨基‑3‑硝基吡啶和Ⅳ:4‑氨基吡啶,步骤b的高效液相色谱条件为梯度洗脱。

Drugs covered by this patent

Patent Metadata

Patent number
CN115184486B
Jurisdiction
CN
Classification
Expires
2023-07-18
Drug substance claim
No
Drug product claim
No
Assignee
Hebei Yipin Biomedical 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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