Its pronunciation is K EY â . Cay is used predominantly in the German language and its origin is Latin. Cay is a variant of the name Kai (Frisian, Dutch, Finnish, German, Scandinavian, and Welsh). Cay is rarely used as a baby name for boys.
The purpose of this application note is to demonstrate the utility of the FLx800 fluorescence microplate reader to detect rapid changes in calcium ion concentration. Introduction Cell Biologists often need to detect and quantitate intracellular spectroscopically silent ions such as Cl-, Na+, K+, or Ca2+.
Concentrations of intracellular and extracellular cations are as follows: 1  Intracellular potassium concentration averages 140 mEq/L. 2  Extracellular potassium concentration is 3.5 to 5 mEq/L. 3  Intracellular sodium concentration is 12 mEq/ 4 L. Extracellular sodium concentration averages 140 mEq/ L.