39 Pumps, Valves & Liquid Handling
Precise back pressure control for challenging gas–liquid systems
Vapourtec has unveiled the eBPR-GL, a self-contained, electronically adjustable back pressure regulator engineered for gas and gas–liquid applications.
Using advanced composite materials, the eBPR-GL provides precise control over back pressures from 0.1 to 10 bar (gauge) and flow rates from 0.01 to 20 ml/min, handling fluids at temperatures up to 100°C.
Conventional BPRs often struggle with gases: leakage rates are higher than with liquids, causing pressure fluctuations - especially at low flow rates - and significant internal volumes can disrupt gas–liquid partitions. The eBPR-GL overcomes these challenges, offering stable, accurate pressure control even when gas partitioning is critical.
“eBPR-GL is a major step forward for back pressure regulation in gas–liquid systems,” said Duncan Guthrie, Vapourtec Managing Director. “Its wetted flow path features only PTFE and PFA fluoropolymers, with perfluoroelastomer seals, ensuring chemical resistance and reliability.”
The eBPR-GL can be supplied with or without an integrated user interface. Both versions support remote pressure adjustment via RS-232 serial commands.
More information online:
ilmt.co/PL/Rn1N 65811pr@reply-direct.com
Integra Biosciences launches the SWITCH hybrid pipette in September 2025 – a breakthrough tool designed to end the compromise between control and speed in liquid handling. With SWITCH, scientists can move effortlessly between manual pipetting and fast electronic repeat dispensing using a single ergonomic device.
Bottle-top dispensers for safe, precise liquid handling
When it comes to repeated liquid distribution, bottle-top dispensers are a versatile tool. Their main advantage lies in consistent and accurate dispensing with minimal effort. CalibrexTM dispensers are designed with the day-to-day needs of laboratory professionals in mind and offer a reliable and robust solution with excellent chemical resistance.
A key advantage of Socorex bottle-top dispensers is their chemical compatibility, tailored for specific reagent types. While CalibrexTM organo 525 is best suited for organics and non-crystalising solutions, CalibrexTM solutae 530 allows trouble free distribution of salt solutions, weak and strong acids and bases. And CalibrexTM universal 520 offers universal chemical resistance.
The bottle-top dispenser is available in seven models ranging from 1 to 100 mL and convinces with its durability and ease of maintenance. It is fully autoclavable, and key elements such as valves, plunger, barrel and delivery jet are removable in seconds for deep cleaning. An integrated calibration system allows easy in-lab adjustments without disassembly, largely reducing downtime.
The instrument rotates 360° for an adequate positioning on the bottle, which makes the volume clearly visible from any position. Its one-handed adjustable volume setting, ergonomic grip and smooth operation contribute to reducing user fatigue.
The CalibrexTM bottle-top dispenser is the dependable, user-friendly choice for laboratory professionals, making dispensing in millilitre scale precise, efficient and safe.
More information online:
ilmt.co/PL/Yw7o 65624pr@reply-direct.com
Manual pipettes give researchers the fine control needed for delicate steps such as mixing or supernatant removal, but can be slow and fatiguing for repetitive workflows like aliquoting. Electronic pipettes solve that problem with programmable repeat dispensing, but often at the cost of complex setup and less intuitive use. SWITCH combines the strengths of both, offering the familiar feel of a manual pipette with the speed and efficiency of an electronic device – without changing established lab practices.
The hybrid pipette is built around a thumb-operated plunger that stays at the same height across all volume settings, eliminating excessive stretching. In repeat dispense mode it lowers further for effortless, button-like operation. This ergonomic design reduces strain while delivering comfort, control and precision. A quick set ring allows one-handed volume adjustments, and an easy-to-read display shows real-time aspiration volumes.
SWITCH uses Integra’s GRIPTIPS® pipette tips for secure, strain-free tip loading and ejection. It includes USB-C charging – even during use – ensuring all-day performance. The pipette is also compatible with the Flex charging stand, which holds and powers up to six SWITCH pipettes simultaneously, available in both rotary and linear formats to fit different lab setups.
By blending precision with efficiency, SWITCH streamlines complex workflows, minimises hand strain, and integrates smoothly into existing laboratory routines.
More information online:
ilmt.co/PL/0KE0 65826pr@reply-direct.com
Hybrid pipette delivers manual precision and fast electronic aliquoting
Automated liquid handling: The key to accurate and reproducible results
Liquid handling is one of the most important, yet tedious tasks in an analytical laboratory. Results need to accurate and reproducible, but this can only happen when correct volumes of sample or solvent are used. Unfortunately, with each manually prepared sample or solution, the risk for falsified results increases.
Liquid handling is used to transport a solution or reagent accurately, and precisely from one place to another. Automated liquid handling utilises piston-driven burettes to perform this job unlike manual methods that require graduated cylinders, glass burettes, or pipets etc to manipulate liquids.
If you’re still working manually with pipets, glass burettes, and other kinds of measuring cylinders in your lab, consider automation for your liquid handling processes. Electronic burettes can do more than just a simple liquid transfer. Accuracy, precision, and cost- efficiency are only some of the benefits of switching to using automated liquid handling in the laboratory.
Contact Metrohm to learn more. More information online:
ilmt.co/PL/9kdR
63955pr@reply-direct.com
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