申请人:HE Huarui
公开号:US20070259438A1
公开(公告)日:2007-11-08
The invention relates to methods of determining calcium ions in a sample, wherein the ions are contacted with a compound having chromophoric moiety and an ionophoric moiety, where the ionophoric moiety interacts with the calcium ions present in the sample, resulting in the chromophoric moiety changing its radiation absorption properties in the ultraviolet and visible regions of the spectrum. For example, a change in an intensity of an absorption maximum is measured and the ion concentration is determined accordingly.
本发明涉及一种测定样品中钙离子的方法,其中将离子与具有色团和离子诱导基团的化合物接触,其中离子诱导基团与样品中存在的钙离子相互作用,导致色团在紫外和可见光谱区的辐射吸收特性发生变化。例如,测量吸收峰强度的变化,据此确定离子浓度。