| 发明名称 | Method for the determination of film-forming amines | ||
| 摘要 | Within a method for the determination of film-forming amines in liquids by adding a reacting agent with the amine to form a colored complex to be measured by photometric method for the reaction the pH of the liquid mixture is lowered by using hydrochloric acid. | ||
| 申请公布号 | US9588090(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201314782632 | 申请日期 | 2013.04.11 |
| 申请人 | SWAN ANALYTISCHE INSTRUMENTE AG | 发明人 | Lendi Marco |
| 分类号 | G01N31/22;G01N21/25;G01N21/78;G01N21/77 | 主分类号 | G01N31/22 |
| 代理机构 | Notaro, Michalos & Zaccaria P.C. | 代理人 | Notaro, Michalos & Zaccaria P.C. |
| 主权项 | 1. Method for the determination of film-forming amines in liquids by adding a reacting agent having a PKa value to the amine to form a colored complex to be measured by photometric method, characterized by adding hydrochloric acid to lower the pH value of the liquid solution to a value <2.3 and characterized in that the reacting agent is a component of the Xanthene Group according to the following general formula:wherein, R1=H or a halogen, and R2=H or a halogen. | ||
| 地址 | Hinwil CH | ||