Flow injection analysis using ion-sensitive field effect transistors. A model system for discrete assays and continuous in vitro monitoring of pH and pCa.
A miniaturized flow injection system yields an instant readout and requires microlitre volumes of sample and reagent solutions. Using electrode measurement as an example it is shown that the difference between discrete assays and continuous monitoring becomes so small that the same apparatus will eventually perform both functions.
D002118:Calcium / Q000032:analysis*; D004566:Electrodes; D006863:Hydrogen-Ion Concentration; D008722:Methods; D014173:Transistors, Electronic
D002118:Calcium