We are now trading as Crawford Scientific

Evaporators

Evaporators are essential laboratory instruments used to remove solvents from samples through controlled heating and evaporation, ensuring precise and efficient sample preparation. They are widely employed in research, analytical, and industrial settings for concentrating solutions, recovering solvents, and preparing samples for further analysis. 
Our range includes nitrogen blowdown evaporators, ideal for concentrating samples before chromatography analysis; rotary evaporators, widely used in chemical synthesis, pharmaceutical development, and natural product extraction; and modular sample derivatisation systems with evaporation, designed for analytical chemistry workflows that require both derivatisation and solvent removal. Whether for routine laboratory tasks or complex research projects, these evaporators provide the accuracy, efficiency, and versatility needed to meet a wide variety of scientific requirements.


NITROGEN BLOWDOWN EVAPORATORS

Nitrogen blowdown evaporators are designed for the gentle and efficient removal of volatile solvents using a controlled stream of nitrogen gas. They are commonly used in analytical laboratories for sample concentration prior to techniques such as HPLC, GC, or mass spectrometry, offering precise control over evaporation conditions while minimising the risk of sample degradation or contamination.


ROTARY EVAPORATORS

Rotary evaporators are widely used in laboratories to remove solvents from fractions collected during purification processes. They work by rotating a sample flask to increase the surface area for evaporation, while a vacuum lowers the boiling point and a heated bath provides precise temperature control. This combination allows for rapid solvent removal with minimal thermal degradation, making them ideal for concentrating solutions, evaporating solvents, and purifying compounds. 


SAMPLE DERIVATISATION SYSTEM

Sample derivatisation systems are modular platforms designed to support a wide range of small-scale laboratory reactions, including derivatisation, incubation, evaporation, and hydrolysis. Combining precise heating, stirring, and gas-assisted evaporation, these systems offer flexibility and control across various analytical workflows.


EXPERT TECHNICAL SUPPORT

Investing in laboratory instrumentation is about more than selecting the right equipment - it’s about having the expertise and support to maximise performance from day one.

At Crawford Scientific, our experienced technical specialists provide expert guidance to help you select the best chromatography, mass spectrometry, and sample preparation solutions for your analytical requirements. Working alongside your laboratory to maximise performance, efficiency, and reliability.

Contact our team today to discuss your requirements and find the right solution for your workflow.