?Specifications Measurement Principle Direct potentiometry through Ion-Selective electrodes (ISE). Sample Serum, plasma, whole blood and urine. Sample volume: 80 uL. Type of Operation Manual or Autosampler. Autosampler Dish with 39 autosampler positions. Throughput 60 Test/hour. Calibration One point or two point calibration. Automatic (programmable) or according to requirements. “Sleep” mode for reagent saving. Electrodes Self-made maintenance free electrodes. Change of membrane not required. Reagents Reagent Pack “on board”. Closed container for both calibrates and waste, which prevents the bio-organic pollution.