Posted by Chrom Tech on 14th Oct 2025
One Simple Step to Conserve Helium
The ongoing helium shortage continues to impact gas chromatography (GC) laboratories worldwide. While alternative carrier gases such as hydrogen or nitrogen can sometimes replace helium, we understand that switching is not always practical. For many labs, the best solution is to focus on reducing helium consumption through proactive leak prevention and efficient gas management. One of the simplest and most effective ways to conserve helium is by regularly checking for gas leaks throughout your system.
How to Check for Gas Leaks in the Lab
Leak detection is a crucial part of routine maintenance for any GC system. We recommend that all laboratories using gas cylinders or generators implement a regular inspection schedule to ensure there are no leaks in the system. Even a small, undetected leak can waste large amounts of helium over time—especially during shortages when every liter matters.
Leaks not only deplete gas supplies but can also cause baseline instability, detector noise, and poor reproducibility in chromatographic results. While liquid leak detection solutions (commonly called “snoop”) are inexpensive, they can be messy and introduce contamination. For a cleaner, faster, and more accurate solution, we recommend using an electronic leak detector. These handheld tools instantly pinpoint leaks without introducing liquids or residues into your system—saving valuable time and minimizing downtime.
Restek’s Dynamic Duo: Leak Detector + Flowmeter
One standout option is the Restek Electronic Leak Detector, known for its reliability and long-lasting performance. It offers up to 12 hours of continuous battery life, and it can even be used while charging—an ideal feature for busy labs that can’t afford interruptions.
For even greater efficiency, Chrom Tech offers the Restek Dynamic Duo, which combines the leak detector with the ProFLOW flowmeter in one discounted kit. This dual setup allows users to measure flow rates and detect leaks simultaneously—helping prevent small issues before they become costly repairs. Whether you’re managing a single GC or a multi-instrument facility, this simple investment can lead to substantial long-term helium savings and improved system reliability.
To learn more about leak detection tools and gas management solutions, contact Chrom Tech’s technical specialists or browse our leak detector selection online.
Frequently Asked Questions About GC Leak Detection
How often should I check my GC system for leaks?
Ideally, leak checks should be performed weekly or whenever you replace a column, fitting, or gas cylinder. Regular inspections help conserve helium and maintain consistent chromatographic performance.
Why shouldn’t I use liquid leak detectors like snoop?
Liquid leak detectors can leave residues that contaminate your GC system and damage fittings. Electronic leak detectors eliminate this risk while providing faster, more accurate leak identification.
Can an electronic leak detector find very small leaks?
Yes. High-sensitivity electronic leak detectors can identify micro-leaks that may not be visible or audible, allowing early intervention before gas loss or contamination occurs.
What comes with the Restek Dynamic Duo?
The Dynamic Duo includes both the Restek ProFLOW 6000 flowmeter and electronic leak detector, offering a complete solution for flow measurement and leak detection in one convenient package.