On the basis of the present portable atmospheric-pressure solution cathode glow dischargeatomic emission spectrometry( SCGD-AES),we have designed a new embedded solution cathode that is simple to be producted. The embedded solution cathode can use peristaltic pump to inject sample directly,which may simplify the sampling system of SCGD. Corundum cathode tube has wetting function,making the fluctuation of cathode orifice surface is small and cannot form droplets when sampling with peristaltic pump,which ensu...