Method and device for automatic measurement of trace metal components and contents in aqueous solution using glow discharge electrolysis

摘要

The present invention relates to an automatic measuring device and a method for automatically detecting a small amount of heavy metal components and their contents in an aqueous solution at the same time on-line using a glow discharge electrolytic method. The liquid discharge part comprises a liquid discharge part, an optical measuring part, and an automation part, and the liquid discharge part includes a glow discharge electrolytic cell in which discharge occurs, a sample introduction part, a DC power supply for supplying discharge power, and a gas flowing into a GDE cell. If the gas flow control unit for controlling the amount is included, the liquid discharge unit also includes an exhaust sample storage unit, a hydrogen gas absorption beaker, and an Ar gas supply unit. The optical measuring unit includes a monochromator, a photomultiplier tube, a ministep driver, and a monochromator controller. The automation unit extends outside the personal computer, RS-232c interface, AD / DAC board, and PC. AD / DA control box and a solid state relay driving device 18 is characterized in that.