PH Meter

If you work in a clinical lab, research lab, or perform water testing you will most likely use a ph meter at some point in your work. A ph meter is an electronic instrument designed to measure the acidity or alkalinity of a solution. Ph meters consists of a ph meter probe that is attached to meter that gives a digital readout of the ph. The ph probe measures the concentration of hydrogen ions in the solution. In order to function properly every ph meter must be calibrated every day. Ph meter calibration involves the use of standard ph meter buffer solutions. These solutions are typically ph 4 and ph 10. Some ph meters are a combination conductivity ph meter. A conductivity meter mesures the electrical conductivity of a solution. A benchtop ph meter are practical for work inside the laboratory however a portable ph meter is required for work in the field. Beckman Coulter, Thermo Fisher Scientific, and Mettler Toledo supply ph meters and their various accessories.