Study on natural ageing of blue ballpoint pen inks by ultraviolet-visual spectrophotometry;

建立了一种基于非水毛细管电泳法区分蓝色圆珠笔油墨的方法。

youdao

Study on natural ageing of blue ballpoint pen inks by ultraviolet-visual spectrophotometry;

建立了一种基于非水毛细管电泳法区分蓝色圆珠笔油墨的方法。

youdao