| 摘要 |
<p>A method of flow injection back titration is disclosed for providing on-line chemical analyses of a process stream where the species of interest is not directly titratable. A stream of titrant is formed and then a sample and an excess of back-titrant are added to the stream of titrant. The back-titrant is allowed to react with the sample and then the remaining back-titrant is reacted with the titrant. The reaction is monitored, and the concentration of the component of interest in the sample is determined from time it takes for the back-titrant to be substantially consumed by the titrant.</p> |
