Novel portable pH glass electrode stirring device

Abstract

The invention discloses a novel portable pH glass electrode stirring device. The novel portable pH glass electrode stirring device comprises a fixing clamping groove, a support, a sleeve, blades, a motor, a gas hole, and a rotating speed adjusting controller; a pH glass electrode is fixedly arranged on the support through the fixing clamping groove; the sleeve is fixedly arranged on the lower endof the pH glass electrode; the bottom end of the sleeve is provided with the blades; the front ends of the blades are fixedly arranged on a rotating shaft of the motor; the motor is used for driving the blades to rotate; the blade pushing force is adopted to stir tested solution; the tested solution flow through the gas hole under stirring effect of the blades; and the rotating speed of the motoris controlled by the rotating speed adjusting controller. According to the above structure, the motor arranged on the bottom of the pH glass electrode is adopted to drive the blades to rotate, so thatstable stirring of the tested solution is realized.

Description

Technical field [0001] The invention belongs to the technical field of environmental monitoring, and specifically designs a novel portable pH glass electrode stirring device. Background technique [0002] As one of the water quality parameters in environmental monitoring, the pH value needs to be measured on-site with a portable pH glass electrode. Since the corresponding time of the pH glass electrode is calculated from the time when the pH glass electrode and the reference electrode are in contact with the test solution (or from when the concentration of the measured substance changes in the test), until the electrode potential becomes a stable value (± The time elapsed at a certain instant within 1mv. In fact, this time is measured after forming a measuring cell. It should be the dynamic equilibrium time of the entire cell, including the membrane potential equilibrium time of the ion selective electrode. The stability of the specific electrode, the stability of the liquid jun...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used portable pH glass electrode is not designed with a stirring device. The tester uses the pH glass electrode to manually stir the test solution. Because the stirring speed is different without the tester, the stability of the liquid junction potential is poor, and the data cannot be kept stable when reading. , resulting in measurement data deviation

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