Catalog: 828 IC Dual Suppressor | |
| 828 ic dual suppressor opens up new applications for ion chromatography and offers decisive advantages · minimal background conductivity thanks to chemical suppression and suppression of co2 · minimal interference as both injection peak water dip and system peak become very small · step ahead in gradient ic with carbonate-hydrogen carbonate eluents · no limitation to hydroxide eluents | |
| one plus one equals three with the 828 ic dual suppressor metrohm introduces a new suppressor generation in addition to the usual chemical suppression which eliminates the carbonate-hydrogen carbonate background the new suppressor has an additional suppression stage that removes the co2 produced to reduce the background conductivity even further this increases the peak areas in the ppm range and above by approximately 30 at the same time the areas of the injection peak water dip and the system peak diminish considerably this means improved detection of the anions that elute very early and of those ... | |
| gradients from 88 to 18 minutes up to now the use of gradients was essentially restricted to hydroxide eluents as the change in co2 concentration caused a marked rise of the base line when carbonate-hydrogen carbonate eluents were used however hydroxide is an extremely weak eluent this means that very high alkali concentrations which are as such undesirable may have to be applied to achieve the desired separations the continuous operation of the 828 ic dual suppressor facilitates the use of gradient systems the h cations required for anion suppression are generated electrochemically as the 828 ... | |
