![溶出检测方法和仪器](/CN/2006/1/14/images/200610071444.jpg)
基本信息:
- 专利标题: 溶出检测方法和仪器
- 专利标题(英):Elution test method and apparatus
- 申请号:CN200610071444.X 申请日:2006-03-28
- 公开(公告)号:CN1841047A 公开(公告)日:2006-10-04
- 发明人: 岩田庸助 , 毛利元昭 , 浅川直树
- 申请人: 株式会社岛津制作所 , 卫材药业有限公司
- 申请人地址: 日本京都市
- 专利权人: 株式会社岛津制作所,卫材药业有限公司
- 当前专利权人: 株式会社岛津制作所
- 当前专利权人地址: 日本京都市
- 代理机构: 北京市柳沈律师事务所
- 代理人: 张平元; 赵仁临
- 优先权: 90700/05 2005.03.28 JP
- 主分类号: G01N21/31
- IPC分类号: G01N21/31 ; G01N33/15 ; B01D59/42
An elution test method measures the elution process of a specific component in a process where a preparation containing at least the specific component subject to a change with time in chemical properties after elution and an impurity component not subject to a change with time in chemical properties after elution is eluted into a test liquid. The method obtains a ratio of absorbance k of the impurity component and a ratio of absorbance k' of the specific component at two isosbestic point wavelengths lambda1, lambda2 in a spectrum including the specific component and its decomposed matter, and calculates at least one of the absorbances A1(t), A2(t) of said specific component by using kxC2(t)-C1(t)=kxA2(t)-A1(t) and A1(t)/A2(t)=k' from the absorbance C1(t), C2(t) at said two isosbestic point wavelengths lambda1, lambda2 measured at the plural time points t in the elution process of said preparation, and converts the result to an elution concentration.
公开/授权文献:
- CN1841047B 溶出检测方法和仪器 公开/授权日:2010-10-20
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01N | 借助于测定材料的化学或物理性质来测试或分析材料 |
------G01N21/00 | 利用光学手段,即利用红外光、可见光或紫外光来测试或分析材料 |
--------G01N21/01 | .便于进行光学测试的装置或仪器 |
----------G01N21/21 | ..影响偏振的性质 |
------------G01N21/31 | ...测试材料在特定元素或分子的特征波长下的相对效应,例如原子吸收光谱术 |