一种对于电泳微芯片的检测信号进行处理的新方法,可以提高其信号的信噪比。这种基于激光诱导荧光(LIF)检测系统的方法,通过对检测信号进行的一系列低通滤波、放大等处理,从而达到提高信噪比、降低检测限的目的。将本方法应用于DNA片段的分离实验中,可以提高信噪比(SNR)至6-8倍,检测限(LOD)降低至10-10mol/L。 A new method for processing the detection signal of electrophoresis microchip can improve the signal-to-noise ratio of its signal. This laser-based fluorescence (LIF) detection system approach, through a series of low-pass detection signal amplification, amplification and other processing, so as to achieve the purpose of improving the signal to noise ratio, reducing the detection limit. The method was applied to the DNA fragment isolation experiments, can improve the signal to noise ratio (SNR) to 6-8 times, the detection limit (LOD) decreased to 10-10mol / L.