K+ ion selective electrode cobas® pro ISE analytical Unit

sodiumCl-

Overview

The ISE analytical unit performs potentiometric determination of sodium (Na+), potassium (K+) and chloride (Cl-) in diluted clinical samples using three ion‑selective electrodes and a reference electrode. It is designed for integration with an associated c 503 analytical unit, which supplies water, vacuum and Basic Wash solution and shares the sample buffer.

Applications

• Sodium (Na+)
• Potassium (K+)
• Chloride (Cl-)

Key features

• Throughput: 900 tests/h
• Alternate throughput (source): 300 samples/h
• Sampling cycle time: 12 s
• Sample types:
  • Serum / plasma
  • Urine
• Sample pipetting volumes (serum/plasma/urine): 15 µL; 10 µL (reduced for urine)
• 2D barcode reader: Yes
• Liquid level detection: Yes
• Clot detection: Yes
• Air aspiration detection: Yes
• Abnormal aspiration pressure detection for ISE probe aspiration

Technical specifications

• Measurement principle: Potentiometric analysis using ion‑selective electrodes
• Ions measured: Na+, K+, Cl- (3 ISEs) plus reference electrode
• Number of ISE applications: 60
• Sample index: 60 (3 applications / 20 sample types)
• Maximum throughput: 900 tests/h
• Alternate throughput entry: 300 samples/h (as shown in source)
• Sampling cycle time: 12 s
• Supported sample types: Serum/plasma, Urine
• Pipetting/sample volumes: 15 µL (standard); 10 µL (reduced for urine)
• Onboard detection and controls: 2D barcode reader, liquid level detection, clot detection, air aspiration detection, abnormal aspiration pressure detection
• Integration: Shares sample buffer with c 503 analytical unit (c 503 supplies water, vacuum and Basic Wash)