Osmometers
Osmometers
Instruments suitable for measuring the osmotic strength of a solution, colloid, or compound, or for determining the average molecular weight of a sample. Products include accessories and replacement parts for osmometers.
Osmometers and micro-osmometers (osmotic meters) are devices for measuring the osmolality (osmotic concentration or osmotic strength) of aqueous solutions. Osmolality is defined as the total concentration of all osmotically active dissolved solutes present in a given volume of solution. Osmolality is usually measured in mOsm/L or Osm/L.
Modern, automated electronic osmometers offer user-programming and digital displays and can analyze very small volumes of samples down to 20 µL.
What are the Different Types of Osmometers?
Different osmometers work based on different operating principles:
• Freezing point osmometers: industry-preferred models; provide the greatest accuracy and precision since the freezing point of water is depressed in proportion to the level of dissolved solute
• Vapor pressure osmometers: avoid issues associated with high viscosity or suspended particulates that may interfere with freezing point depression
• Other: osmometers based on the principles of specific gravity, refractive index, semi-permeable membrane flow or conductivity; are less favored and are considered less reliable
Most osmometers are supplied with a range of calibration standards and reference solutions (osmometer controls) and osmometer accessories.
How Are Osmometers Used in the Lab?
Osmometers are key items of equipment in a range of laboratory environments:
• Clinical chemistry: for testing whole blood, serum, plasma, urine and other body fluids for metabolic and electrolytic disorders and intoxication
• Pharmaceutical industry: bioprocess monitoring at critical points during manufacturing
• Organic and inorganic chemistry: to determine the average molecular weight of polymers or other unknown compounds or mixtures
• Other biology applications: analysis of plant saps, hydroponic or cell culture media
Precision Systems Osmette™ Multi-Osmette Osmometer
Automatic digital osmometers measure osmolality in mOsm/kg H2O. Osmette Multi-Osmette Osmometer uses the freezing point depression method to provide a quick, accurate indication of total concentration. Instruments measure freezing points of solutions to 0.001°C, then directly translate them to measure of concentration.
Advanced Instruments OsmoPRO™ Multi-Sample Micro-Osmometer
Simple and efficient freezing point osmometer. Ideal for mid- to high-volume laboratories that prefer to automate osmolality batch testing while improving laboratory efficiency, throughput, and productivity.
Advanced Instruments Osmo1 Single-Sample Micro-Osmometer
The Advanced Instruments Osmo1 Single-Sample Micro-Osmometer offers direct draw of small sample volumes, ease-of-use, accurate and precise results, and the security and efficiency of electronic data management.
Precision Systems Osmette™ A Osmometer
Automatic digital osmometers measure osmolality in mOsm/kg H2O. Osmette A Osmometer uses the freezing point depression method to provide a quick, accurate indication of total concentration. Instruments measure freezing points of solutions to 0.001°C, then directly translate them to measure of concentration.
Precision Systems Osmette II™ and Osmette III™ Osmometers
The simplicity and dependability of Osmette™ osmometers in a small, lightweight size. Osmette II and Osmette III Osmometers are ideal for one-step freezing-point measurement of osmolality.
Precision Systems Touch Micro-Osmette™ Osmometer, Model 6002
Freezing Point Osmometer incorporates the latest in menu-driven operation with the precision and accuracy we have delivered for over 50 years.
Precision Systems Osmette™ Micro-Osmette Osmometer
Automatic digital osmometers measure osmolality in mOsm/kg H2O. Osmette Micro-Osmette Osmometer uses the freezing point depression method to provide a quick, accurate indication of total concentration. Instruments measure freezing points of solutions to 0.001°C, then directly translate them to measure of concentration.
Precision Systems Printer Paper for 5010 Osmette III™ Fully Automatic 10μL Osmometer
Accessory for 5010 Osmette III fully automatic 10μL Osmometer.
Precision Systems Osmette™ Osmometer Disposable Sample Tubes
Sample tubes for use with the Osmette Osmometer.
Precision Systems Bath Fluid for Osmette™ Osmometers
For use with Osmette A Osmometer, Osmette XL Osmometer.
Advanced Instruments Osmometer Disposables
Disposables for use with Advanced osmometers
Advanced Instruments Osmometer General Accessories and Supplies
Accessories for use with Advanced Instruments Osmometers.
Precision Systems Replacement Stirring Wires for Osmette™ Osmometers
For use with Osmette Osmometers.
Precision Systems Test Tube Racks for Osmette™ Osmometer
For use with Osmette Osmometers.
Precision Systems Replacement Temperature Probes for Osmette™ Osmometer
For use with Osmette Osmometers.
Advanced Instruments Probe Wiper Discs
Supplies for A2O™ Advanced Automated Osmometer
Advanced Instruments Probe Wiper Rings
Probe Wiper Rings for Advanced Multi-Sample Osmometer, Model 2020
Advanced Instruments Advanced™ Ease-Eject™ Sampler
For use with Model 3300 and Model 3320 Micro-Osmometers Only
Advanced Instruments Osmometer Printers and Accessories
Printer paper and cartridge for use with Advanced Osmometer Printer.
Advanced Instruments Osmometer Replacement Sample Probes
Probes for Advanced osmometers
Advanced Instruments Micro-Sample Test Kit
The Advanced Instruments Micro-Sample Test Kit ensures accurate and precise results with the Advanced Instruments Osmo1 and 3320 Single-Sample Micro-Osmometers.
Icon Scientific Inc K-7400S Semi-Micro Osmometer
Freezing point osmometer for the determination of osmolality or depressed freezing point of aqueous solutions.
ELITechGroup VAPRO Desiccant Filter Cartridge, Model 5600
Dessicant filter cartridge good for 20 clean tests
ELITechGroup Sample Holder, 10µL x 1.25mm deep
This item has a minimum order quantity of 2 per supplier requirements. OSMOMETER STD SAMPLE HOLDER
ELITechGroup VAPRO Vapor Pressure Osmometer
The Vapro Vapor Pressure Osmometer, can be used to determine the osmolality in any type of sample: fluids, viscous, and even tissue, giving the Vapro great versatility in clinical medicine or biomedical research applications. The Vapro osmometer requires a sample volume of only 10 microliters. Osmolality is displayed in 90 seconds. Measurement range: Typically 20 to 3200 mmol/kg* (up to 3600 mmol/kg with extended range osmometer) @ 25C ambient.
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