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Allocation & surcharges
Suppliers are capping volumes and adding surcharges. Even at a premium, the helium you ordered may not arrive in full — or on time.
Helium is a finite, non-renewable byproduct of natural-gas processing — and in 2026 the market tightened sharply: a major Qatari source went offline, distributors issued force-majeure notices, and available volume is being prioritized for healthcare. GC and GC-MS labs are first to feel it — and no premium buys back a missed run.
Suppliers are capping volumes and adding surcharges. Even at a premium, the helium you ordered may not arrive in full — or on time.
A bottle that empties during a sequence means a scrapped run, a swap, and a re-equilibration before you’re back to baseline.
Late deliveries, demurrage fees, and idle instruments turn a gas-supply problem into a throughput and cost problem.
Modern GCs are hydrogen-ready, and hydrogen is the direct replacement for helium carrier gas. SLI specs the right on-site LNI Swissgas generator — ultra-high purity, generated continuously, with no cylinders to track and no allocation to wait on.
Building a complete GC gas solution? SLI also supplies ZA Series zero air for FID combustion and HLP Series water purification for hydrogen-generator feed — specified alongside your H₂ or N₂ in the same assessment.
A lab running GC doesn’t just pay for gas — it pays for everything around the gas. Set the purchase price next to years of cylinder contracts and the picture changes.
Every cylinder carries rental and delivery fees — and demurrage when it sits. Generation replaces all of it with one power (plus DI-water) line.
High-pressure cylinders and cryogenic dewars carry storage, handling, and floor-space costs that never show on the gas invoice.
Cylinder-to-cylinder variation and dewar boil-off force recalibration. A generator delivers the same grade every day.
Staff time spent ordering, swapping, leak-checking, and logging cylinders is real cost — gone with set-and-forget generation.
On-site hydrogen and nitrogen commonly pay for themselves within a couple of years for labs with steady consumption — after which gas becomes a fixed utility cost instead of a recurring, inflating bill. We build your ROI from your actual gas usage, not industry averages.
See the numbers for your lab →It’s the right question to ask. The measured answer: a hydrogen generator makes gas only as your instruments draw it, holding a small, low-pressure volume on site — not the large, high-pressure inventory a cylinder bank represents. Paired with built-in monitoring and SLI’s best-practice guidance, the switch is well within reach for most GC labs.
The generator produces gas only as your instruments draw it — there’s no large standing inventory to manage.
Only a small, low-pressure quantity is held on site at any moment — inherently safer than a bank of high-pressure cylinders.
Integrated leak detection and automatic shut-off are designed into the unit, not bolted on after the fact.
Modern GCs are hydrogen-ready, and SLI shares the best practices that make the switch easier.
Switching gas supply touches more than the lab. Here’s how we work through the rest.
“We’ve always used cylinders.”
On-site generation is the standard for high-purity analytical labs, and modern GCs are built for it. You’re not betting on new technology — you’re retiring an old dependency.
“Purchasing won’t approve capital.”
Our leasing partner can structure a generator as a monthly opex line that often bypasses the capex approval process entirely — and the payment is frequently less than your current cylinder rental.
“We’re locked into an Airgas / Linde contract.”
We help you calculate your true all-in cylinder cost and line the conversion up with your contract renewal — and can run a generator in parallel so you switch with data in hand.
National suppliers drop a generator at your dock and leave install and method conversion to you. SLI specs, commissions, trains, and services in person — engineers carrying ISO 9001 / 14001 / 17025-certified LNI Swissgas equipment.
A Sales Engineer specs the right generator to your exact instruments and methods — GC carrier, FID, LC-MS — not a one-size box.
We commission on site, then train your team. Your bench is running before we leave.
Premium LNI Swissgas — Swiss precision, Italian design — ISO 9001 / 14001 / 17025 certified.
In-person engineers for commissioning and training plus ongoing PM, calibration, and parts across our territory — not a ticket queue three time zones away.
A sample of where SLI on-site generation runs today — named references and a site visit available later in your evaluation.
“Gulf Coast refinery QC labs running heavy GC-FID workloads stopped scheduling around cylinder deliveries — and lost no GC runs to empty bottles.”
“Specialty-chemical plants replaced a wall of H₂ and zero-air cylinders with a couple of benchtop generators — freeing floor space and steadying FID baselines.”
“An enterprise beverage QC operation runs its chromatography lab on on-site gas generation — consistent supply, no delivery juggling.”
“Tox and clinical mass-spec labs switched off liquid-nitrogen dewars to on-site nitrogen — no boil-off, steady sensitivity run to run.”
A Sales Engineer reviews your GC instruments and methods, specs the right HG or NG generator, and delivers a detailed quote within one business day. No obligation — we determine the equipment and the numbers; you decide.
Switching carrier gas does require method adjustment, and most modern GCs are hydrogen-ready by design. SLI shares best practices that make the transition easier. You’re not figuring it out alone.
Hydrogen is the direct replacement for helium carrier gas and the fuel for your FID. Nitrogen covers make-up gas, LC-MS source gas, and sample prep, and serves as an alternate GC carrier for some detectors. For GC-MS specifically, hydrogen is the carrier substitute. Your engineer confirms the right fit during the assessment.
Yes. HG and NG units are sized by total flow, so a single generator commonly feeds an entire bench of instruments. Your assessment maps your combined demand and specs one unit (or a small set) to cover it with headroom.
Yes. We work with a leasing partner that can structure a generator as a monthly operating expense, which often bypasses the capex approval process entirely — and the payment is frequently less than your current cylinder rental.
Once the unit is on site, SLI commissions it — typically a day or two — and trains your team, so you get a working system, not a pallet of boxes.
Yes. SLI is Houston-based and serves a 20-state territory across the South Central, Southeast, and Midwest for LNI Swissgas hydrogen, nitrogen, and zero-air systems — with local engineers for commissioning, training, and ongoing service.
Book your free Helium-to-Hydrogen Conversion Assessment and get a clear, local path off the cylinder supply chain.
Book My Free Conversion Assessment →