Standard configuration:Host, microprocessor controlled stirrer, glass graphite electrodeAg/AgCl electrode, platinum electrode, T-METAL software

Glass graphite electrodeGC
The electrochemical technique of reducing potential of elements can be used to determine the concentration of trace metals in a solution. When detecting trace metals, appropriate treatment of the sample should be carried out based on the presence of the elements in the substrate. In addition, the concentration of the metal sample determines the amount of sampling, and a defined negative potential is used to convert the injected element into its metallic state. In batteries undergoing electrochemical reactions, there must be a supporting electrolyte, which can facilitate the migration of charges near the graphite electrode. This electrolyte is usually an acid solution. This potentiometric stripping technique is very sensitive, with a detection limit for trace metals belowPpb level. Note: The Ag/AgCl electrode (reference electrode) and platinum electrode form a closed circuit and are used as standard electrodes.

Rotating disk electrode（RDE）
The rotating disk electrode is installed on the drive shaft, which has a stable and adjustable angular velocity in the direction perpendicular to the disk surface. Due to this movement, the liquid near the disc will generate a radial velocity, pushing it away from the center of the disc. Subsequently, a liquid that flows regularly on the surface will replace this flowing liquid. Due to the rotating disk electrode being able to extract liquid from the battery, it actually functions as a pump. The rotating disk electrode can provide a renewable flowing liquid, which enables good repeatability and accuracy in the analysis and testing process. The rotating disk electrode is placed in the conical groove of the electrode support, rather than on the spiral stirrer used for other solid electrodes. The small coaxial cable is composed ofThe T-Metal volt ampere system connector, while the external speed controller occurs through a multi-stage shielded cable. When the metal concentration is very low, a rotating disk electrode can be used, and its detection limit can reach the ppt level.

Suspended mercury electrode（HDME）
Suspended mercury electrodes can be applied in all types of analysis, mainly in the field of cathodic fields, where solid fixed electrodes and rotating electrodes are not suitable. When high repeatability is required and the memory efficiency of solid electrodes is disrupted, rotating disk electrodes can also be used as a substitute for solid electrodes. When using chelating agents or when harmful gases are generated on the electrode surface during the analysis process, it is also necessary to use a suspended mercury electrode to analyze organic matter. Suspended mercury electrodes can also be used to analyze mineral samples. When the solution is obtained by heating and high-pressure microwave digestion, the conditions are too harsh, which often damages the mercury film generated on the graphite electrode.