-metry - significado y definición. Qué es -metry
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Qué (quién) es -metry - definición

INSTRUMENT THAT INDICATES ACIDITY OR ALKALINITY IN WATER-BASED SOLUTIONS, EXPRESSED AS PH
Ph meter; PH-meter; Ph electrode; PH electrode; PH probe; PH-metry
  • access-date=5 April 2017}}</ref>
  • Beckman model 72 pH meter, 1960
  •  Using an early Beckman pH meter in a lab
  • 5.739 pH/Ion at 23 °C temperature shown on photo. pH 7110 pH meter manufactured by inoLab

-metry      
¦ combining form in nouns denoting procedures and systems corresponding to names of instruments ending in -meter (such as calorimetry corresponding to calorimeter).
Origin
from Gk -metria, from -metres 'measurer'.
-metry      
·- A suffix denoting the art, process, or science, of measuring; as, acidmetry, chlorometry, chronometry.

Wikipedia

PH meter

A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred to as a "potentiometric pH meter". The difference in electrical potential relates to the acidity or pH of the solution. Testing of pH via pH meters (pH-metry) is used in many applications ranging from laboratory experimentation to quality control.