COMPOSITION AND CONCENTRATION MEASURING METHOD AND APPARATUS OF MINUTE HEAVY METAL IN LIQUID USING GLOW DISCHARGE

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 contained in an aqueous solution in a multi-line at the same time using the glow discharge electrolytic method, automatic heavy metal measuring apparatus according to the present invention 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 supplying discharge power, and a gas flowing into the GDE cell. It includes a gas flow control unit for controlling the amount, in addition to the liquid discharge unit includes a discharge sample storage unit, hydrogen gas absorption rain, Ar gas supply unit. The optical measuring unit includes a monochromator, a photomultiplier tube, a ministep driver, a monochromator controller, and the automation is extended to a personal computer, a built-in RS-232c interface, an AD / DAC board, and an external PC. AD / DA control box and a solid state relay driving device 18 is characterized in that.