A Sandwich-Injection Method for Microchip Electrophoresis
Abstract
We present a sandwich-injection method for controlling discrete sample injection in µ-CE. This method involves four accessory arm channels in which symmetrical potentials are loaded to form a unique parallel electric field distribution to confine the spreading of sample plugs and prevent sample leakage. The virtues of the novel injection technique were demonstrated with numerical models and experiments.
We present a sandwich-injection method for controlling discrete sample injection in µ-CE. This method involves four accessory arm channels in which symmetrical potentials are loaded to form a unique parallel electric field distribution to confine the spreading of sample plugs and prevent sample leakage. The virtues of the novel injection technique were demonstrated with numerical models and experiments.
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