title: Portable system for simultaneous measurements of blood electrolytes.
abstract: Miniature, rugged Chemfet sensors have been developed by coating field-effect transistors with ion-sensitive membranes. These sensors have been combined with a flow injection analysis manifold to demonstrate feasibility of a small portable system capable of simultaneous determinations in 10 seconds of hydrogen, potassium and calcium ion activities in 20 microliters samples of whole blood, serum or dialysate.
mesh_terms: D001774:Blood Chemical Analysis / Q000295:instrumentation*; D002118:Calcium / Q000032:analysis; D004573:Electrolytes / Q000097:blood*; D006801:Humans; D006859:Hydrogen / Q000032:analysis; D007477:Ions; D007688:Kidneys, Artificial / Q000295:instrumentation; D010783:Photometry / Q000379:methods*; D011188:Potassium / Q000032:analysis
chemical_list: D004573:Electrolytes; D007477:Ions; D006859:Hydrogen; D011188:Potassium; D002118:Calcium