Modular anion system with chemical suppression, sample
preconcentration and matrix elimination
Usually it is not the analysis itself that causes problems,
but rather the sample matrix in which the analysis is
to be carried out. The "MIC-6 Advanced" modular
anion system with chemical suppression, sample preconcentration
and matrix elimination simplifies samples preparation
in two respects: on the one hand matrix effects can be
eliminated, while on the other hand the preconcentration
technique can be used to reliably determine low concentrations.
The "contaminated" sample is transferred to
the "sample loop" of Valve B by the built-in
peristaltic pump of the 838
Advanced IC Filtration Sample Processor. The valve
is switched and now uses deionized water, supplied via
the 833
IC Liquid Handling Pump Unit, to transfer the sample
to the preconcentration column located on Valve A of
the 820
IC Separation Center. At the same time the deionized
water is used to rinse the contaminants from the preconcentration
column. These steps can be repeated as often as necessary.
When the enriched sample volume is large enough Valve
A is switched and the sample is transferred to the separating
column - now without the interfering matrix.
Matrix elimination significantly increases the working
life of the anion and cation columns. Sample preconcentration
extends the range of applications. Automation reduces
the costs per sample. With Metrohm Advanced IC Systems
you can safely meet all the demands placed on you. |
