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High-throughput clinical chemistry analyzers automate a wide range of diagnostic tests, performing hundreds or thousands of tests per hour. Their operation hinges on the precise and rapid handling of patient samples and a multitude of reagents. The pumps within these systems are responsible for aspirating, dispensing, and mixing microliter volumes with exceptional accuracy and repeatability.
The Engineering Challenge
The primary challenge for pumps in clinical chemistry analyzers is maintaining precision and accuracy over millions of cycles to ensure reliable test results and minimize costly reagent waste. The pumps must be constructed from materials that are chemically compatible with a vast array of buffers, detergents, and reagents to prevent corrosion or leaching. They must provide a pulsation-free flow to avoid splashing and ensure accurate optical measurements. Long-term reliability is critical to maximize instrument uptime in busy clinical laboratories.
The Thomas Solution
Thomas liquid pumps are engineered for the high-precision demands of clinical chemistry. Our Liquid Diaphragm Pumps and Peristaltic Pumps provide the accuracy and chemical compatibility required for reliable reagent dispensing and waste removal. For the highest level of precision in sample and reagent metering, our TriContinent Syringe Pumps deliver drift-free accuracy and exceptional repeatability, making them ideal for critical fluid handling tasks. These pumps are designed to minimize crystallization issues that can cause other technologies to fail, ensuring consistent performance over time. By collaborating with your engineering team, we can design a fluidic solution that delivers life-of-instrument reliability and performance.
Thomas & TriContinent Pumps & Compressors for Chemistry Analyzer

6313 Series
- Liquid Capacity up to 500 ml/min
- Gas capacity up to 2300 ml/min / 0.61 gpm

6323 Series
- Liquid Capacity up to 1500 ml/min
- Gas capacity up to 5000 ml/min / 1.32 gpm

ETL200 Series
- Liquid Capacity up to 60 ml/min
- Pressure up to 2000 mbar / 29.0 psi

C-series
- 30 mm Stroke
- Resolution: Up to 192,000 steps
- Full Control Electronics