Activity: A thermodynamic term for the apparent or active concentration of a free ion in solution. It is related to con‐ centration by the activity coefficient. Asymmetry Potential: The potential developed across the glass membrane of the measuring electrode with identical solutions on both sides. Also a term used when comparing measuring electrode potential in pH 7 buffer. ATC: Automatic temperature compensation. BNC: A quick disconnect electrical connector used to inter‐ connect and/or terminate coaxial cables. Buffer…
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