Due to the low sample loadability and shallow depth of microchannels, the sensitivity of microchip electrophoresis is limited, especially when optical detector is used for detection.

• 由于可容纳样品体积少及蚀刻管道的光径短，使得微晶片电泳的灵敏度在以光学侦测器为侦测手段时受到限制。