Ontology highlight
ABSTRACT:
SUBMITTER: Chun H
PROVIDER: S-EPMC3125590 | biostudies-other | 2010 Jul
REPOSITORIES: biostudies-other
Analytical chemistry 20100701 14
The development and analysis of a microfluidic sample preconcentration system using a highly ion-conductive charge-selective polymer [poly-AMPS (2-acrylamido-2-methyl-1-propanesulfonic acid)] is reported. The preconcentration is based on the phenomenon of concentration polarization which develops at the boundaries of the poly-AMPS with buffer solutions. A negatively charged polymer, poly-AMPS, positioned between two microchannels efficiently extracts cations through its large cross section, resu ...[more]