Patent ID: 11860117
Assignee: LUH CHERNG ENTERPRISE CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A pH sensor for detecting a pH of a sample, comprising:
a reference electrode configured to contact a sample and including a container unit and at least one water absorbing unit, said container unit including a hollow tubular housing, said at least one water absorbing unit being disposed in said tubular housing and including a porous junction member configured to contact the sample, and a water absorbing member disposed on one side of said porous junction member that is opposite to the sample, said porous junction member and said water absorbing member contacting each other at an interface, said water absorbing member being made from a superabsorbent polymer; and
a glass electrode inserted into said water absorbing member of said at least one water absorbing unit and protruding from said junction member of said at least one water absorbing unit toward the sample.