Dual-Output Membrane Nitrogen Generator-Membrane Nitrogen Generators-Anvore Scientific-Lab & Industrial Process Equipment

For Shimadzu LC-MS / LC-MS/MS · N₂ 0–30 L/min + Dry Air 0–20 L/min · Purity 95–99.9% · No Consumables · No Cylinders

The AV-MNG-30L2 is a dual-output membrane nitrogen generator engineered specifically for Shimadzu LC-MS and LC-MS/MS systems. From one floor-standing cabinet it delivers two independent gas streams that together cover the complete gas demand of a modern mass spectrometry workstation:

Nitrogen (N₂): 0–30 L/min at 95–99.9% purity for nebulizer gas, curtain gas and collision gas, plus dry air: 0–20 L/min at a pressure dew point below −40 °C for drying gas and auxiliary uses — no second generator, no extra floor space.

The generator separates nitrogen from compressed air with hollow-fiber membrane technology: oxygen, CO₂ and water vapor permeate rapidly through the polymer fiber walls and are vented, while nitrogen passes through as product gas; a filtered bypass line supplies clean, dry instrument air. Compared with PSA systems, the membrane design has no switching valves, a simpler structure, smaller footprint, faster start-up (≤ 3 minutes) and lower maintenance.

Everything — built-in compressor, water separator, multi-stage precision filtration, membrane module, buffer tank and dual pressure regulation — is integrated into one movable cabinet. Plug in, connect two gas lines to your Shimadzu system, and eliminate gas cylinders, rental contracts and delivery downtime for good.

Key Advantages

Dual Gas Output From One Unit
Nitrogen 0–30 L/min plus dry air 0–20 L/min — a single generator covers the full gas demand of a Shimadzu LC-MS workstation.
Purpose-Built for Shimadzu LC-MS
Factory-matched flow, purity and pressure for Shimadzu LCMS single and triple quadrupole systems; also compatible with Agilent, Thermo Fisher and AB Sciex.
Zero Consumables
Membrane separation has no switching valves and no adsorbent to replace — dramatically lower lifetime cost than PSA or cylinder supply.
Built-in Compressor, Whisper Quiet
Suspended, sound-insulated compressor runs 24/7 at noise below 56 dB; no external air supply needed.
Laboratory-Grade Gas Quality
No droplet residue, no phthalate ester contamination, particles < 0.01 µm, pressure dew point < −40 °C.
Real-Time Purity Display
High-precision onboard analyzer shows N₂ purity (95–99.9%) at a glance for instant quality confidence.
Fast Start-Up & Easy Expansion
Nitrogen ready within 3 minutes of power-on; capacity can be expanded easily as lab needs grow.
Smart Self-Diagnostics
Program-controlled self-diagnosis, service reminders and filter-expiry early warning simplify maintenance planning.
Compact, Mobile & Space-Saving
Highly integrated modular design (700 × 500 × 1000 mm) with lockable casters for effortless repositioning.

Product Features

Feature	Benefit
Hollow-fiber membrane separation	High purity, long service life, no consumables to replace
Dual gas output (N₂ + dry air)	One unit feeds both the nitrogen and dry-air inlets of a Shimadzu LC-MS
N₂ flow 0–30 L/min / dry air 0–20 L/min	Sufficient supply for high-throughput LC-MS/MS operation
Output up to 105 psi, dual adjustable regulation	Each line's pressure set independently to match instrument requirements
Built-in suspended & sound-insulated compressor	24/7 continuous duty with noise < 56 dB
Multi-stage ultra-precision filtration with failure early-warning	Particles < 0.01 µm; protects membrane and downstream MS
Integrated water separator	Extends membrane module and system service life
Buffer tank with safety valve	Pressure-stabilized output for stable MS signals
Program-controlled self-diagnosis & service prompts	Easy, predictable maintenance
Lockable caster wheels	Easy to move and secure in position

Technical Specifications

Custom flow rates and purity (99% / 99.9% / 99.99% / 99.999% / 99.9999%) available on request — contact sales for tailored models.

Parameter	AV-MNG-30L2
Separation technology	Hollow-fiber membrane, no switching valves
N₂ flow rate	0 – 30 L/min
Dry air flow rate	0 – 20 L/min
N₂ purity	95% – 99.9% (real-time display)
Output pressure	Up to 105 psi (≈ 0.72 MPa), freely adjustable, dual regulation
Gas quality	Particles < 0.01 µm; pressure dew point < −40 °C; no droplet / phthalate residue
Noise level	< 56 dB(A)
Max power	2000 W
Power supply	220V 50Hz — voltage customizable (110V / 220V / 230V / 380V, 50/60Hz)
Dimensions (L×W×H)	700 × 500 × 1000 mm
Weight	150 kg
Mobility	Lockable caster wheels

System Structure

Figure — AV-MNG-30L2 process flow: air pretreatment → membrane separation → dual gas delivery (N₂ + dry air) to Shimadzu LC-MS
Stage 1 · Air Compression & Pretreatment
Ambient air enters the built-in compressor (24/7 duty). A water separator removes moisture, then a multi-stage ultra-precision filter (< 0.01 µm) cleans the air stream, with a filter failure warning to guarantee protection of the membrane module.
Stage 2 · Hollow-Fiber Membrane Separation (Core)
Clean compressed air enters the hollow-fiber membrane module. Oxygen, CO₂ and water vapor permeate through the fiber walls rapidly and are vented to atmosphere, while nitrogen passes through as product gas. A dry-air bypass line draws filtered air for the second output. No switching valves, no consumables — gas is ready in < 3 minutes.
Stage 3 · Dual Gas Delivery & Quality Control
The N₂ buffer tank stabilizes pressure (safety valve fitted), the onboard purity analyzer displays 95–99.9% in real time, and the dual pressure regulator feeds two independent lines: Output 1 (nitrogen, 0–30 L/min) and Output 2 (dry air, 0–20 L/min) — connected directly to the nebulizer, drying and collision gas ports of a Shimadzu LC-MS / LC-MS/MS.

Applications

Shimadzu mass spectrometry
Pharmaceutical & bio-analytical labs — method development, routine quantification, impurity profiling
Food safety & environmental testing — pesticide residue, contaminant and trace analysis
Clinical & forensic laboratories — high-throughput screening applications
Academic & research institutes — chemistry, life science, proteomics, metabolomics