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independent laboratory gas generator service from £450
Lab Gas Generator Service
available from just £450
  • PEAK Nitrogen Generators
  • Parker Domnick Hunter Gas Generators
  • Gas Generator Noise Reduction Systems

KRSS Ltd is the fastest growing independent Mass Spec and Chromatography sales and service company in the UK/Europe & Asia - offering service, instruments and consumables to the pharmaceutical, environmental, forensic, life sciences, food, biotechnology, clinical and academic markets.

Our technical team has over 25 years’ experience in Mass Spec, LCMS, GCMS, HPLC and GC, allowing us to develop an unrivalled technical expertise and market understanding. In addition all KRSS engineers are manufacturer trained. This level of expertise enables them to offer an unrivalled personalised solution for consolidated instrument service, providing our customers a convenient, cost effective plan for all manufacturers’ instruments.

All our service plans are supported by quality spare parts. This provides customer peace of mind, ensuring results are not compromised.

If you have not considered KRSS before then give us a call on +44 (0)161 2410040 and make a change today!

Used Genius ABN2ZA LC/MS Nitrogen Generator

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PEAK Genius ABN2ZA LC/MS Nitrogen Generator specifically designed for AB SCIEX LC/MS

PEAK Genius ABN2ZA LC/MS Nitrogen Generator specifically designed for AB SCIEX LC/MS

The new Genius range of LC/MS Nitrogen Generators from PEAK SCIENTIFIC are smoother, quieter, safer and more efficient than anything on the market. Offering superb technical performance in the lab, all used Genius LC/MS Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

The ABN2ZA Nitrogen Generator is designed specifically for use with the AB SCIEX range of LC/MS instruments, up to and including the latest API5500.

Used NM30L Nitrogen Generator

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PEAK NM30L Nitrogen Generator for LC/MS/MS

PEAK NM30L Nitrogen Generator for LC/MS/MS

Available from KRSS a fully serviced and refurbished NM30L LC/MS/MS Nitrogen Gas Generator. No electrical installation required, simply connect to your existing air supply (dry & oil free @110 psi) and you are ready to produce Nitrogen on demand.All used Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used AB-3G Nitrogen Generator

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PEAK AB-3G Nitrogen Generator designed for the AB-Sciex range of LC/MS instruments

PEAK AB-3G Nitrogen Generator designed for the AB-Sciex range of LC/MS instruments

The AB-3G Nitrogen generator is designed specifically for use with the AB SCIEX range of LC/MS instruments, up to and including the latest API5500. This premium model offers safeguards that are unique to PEAK Scientific generators end effectively deliver reassurance and confidence for critical functions.

Used Genius2 3030 Nitrogen Generator

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PEAK Genius<sup>2</sup> 3030 Nitrogen Generator specifically designed to supply two AB SCIEX LC/MS from a single compact unit

PEAK Genius2 3030 Nitrogen Generator specifically designed to supply two AB SCIEX LC/MS from a single compact unit

Building on the superior reliability and performance already established in the Genius range of LC/MS Nitrogen Generators, KRSS offer the used Genius2 range delivering double the flow.

The Genius2 3030 is specifically designed to supply Curtain, Source and Exhaust gases for two ABI SCIEX LC/MS instruments, whilst ­integrated quiet  compressors make it independent from in-house air supplies. all used Genius LC/MS Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used NM32LA Nitrogen Generator

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PEAK NM32LA Nitrogen Generator suitable for Waters/Micromass LC/MS

PEAK NM32LA Nitrogen Generator suitable for Waters/Micromass LC/MS

The Genius range of LC/MS Nitrogen Generators from PEAK SCIENTIFIC are smoother, quieter, safer and more efficient. Offering superb technical performance in the lab, all used Genius LC/MS Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

The NM32LA Nitrogen Generator is Peak Scientific’s proven solution for customers requring Nitrogen for their LC/MS application. Extensive testing of the generator by mass spec manufacturers throughout the development process guarantees the best Nitrogen solution for your LC/ MS. Suitable for Waters/Micromass LC/MS instrumentation.

Used Genius2 3020 LC/MS Nitrogen Generator

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PEAK Genius<sup>2</sup> 3020 LC/MS Nitrogen Generator Suitable for Waters/Micromass LC/MS

PEAK Genius2 3020 LC/MS Nitrogen Generator Suitable for Waters/Micromass LC/MS

Supply Nitrogen to two separate Mass Specs from a single compact unit

Building on the superior reliability and performance already established in the Genius range of LC/MS Nitrogen Generators, KRSS can offer the used Genius range delivering double the flow,
all used Genius LC/MS Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

The Genius2 3020 LC/MS Nitrogen Generator combines two individual systems with separate Nitrogen outputs into a single compact unit, allowing two separate Mass Spectrometers to be supplied by the same generator with independent control. Suitable for Waters/Micromass LC/ MS instruments.

Used Genius2 3010 Nitrogen Generator

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PEAK Genius<sup>2</sup> 3010 Nitrogen Generator suitable for Agilent LC/MS

PEAK Genius2 3010 Nitrogen Generator suitable for Agilent LC/MS

High flow LC/MS Nitrogen Generator producing up to 64 L/min

Building on the superior reliability and performance already established in the Genius range of LC/MS Nitrogen Generators, KRSS can offer the used Genius2 range delivering double the flow.

The Genius2 3010 LC/MS Nitrogen Generator is designed specifically as a stand-alone system to provide gas to single LC/MS applications which require a high Nitrogen flow. All used Genius LC/MS Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used NM18-420L Nitrogen Generator

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PEAK NM18-420L Nitrogen Generator Specifically designed to connect to an existing air supply

PEAK NM18-420L Nitrogen Generator Specifically designed to connect to an existing air supply

Suitable for LCMS, LCMSMS, Turbovap, ELSD and NMR applications

Membrane Technology has been around for many years and is commonly used to filter compressed air with the purpose of generating nitrogen. Ever since Peak Scientific developed their first membrane nitrogen generator they have been working with the manufacturers of Mass Spec and other laboratory applications to ensure a pure, dry and phthalate-free source of nitrogen in the lab.

Peak Scientific have taken huge steps in improving the quality and functionality of their generators; including ingenious little touches which are unique in the market place. All used Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used N110DR Nitrogen Generator

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PEAK N110DR Nitrogen Generator designed for use with any LC/MS  model

PEAK N110DR Nitrogen Generator designed for use with any LC/MS model

The N110DR Nitrogen Generator is designed for use with any LC/MS model, featuring unique safeguards to ensure uninterrupted availability.

Membrane Technology has been around for many years and is commonly used to filter compressed air with the purpose of generating nitrogen. Ever since Peak Scientific developed their first membrane nitrogen generator they have been working with the manufacturers of Mass Spec and other laboratory applications to ensure a pure, dry and phthalate free source of nitrogen in the lab.

They have taken huge steps in improving the quality and functionality of their generators; including ingenious little touches which are unique in the market place.

Used NM20-80Z Nitrogen Generator

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PEAK NM20-80Z Nitrogen Generator Suitable for one or multiple AB SCIEX LCMS

PEAK NM20-80Z Nitrogen Generator Suitable for one or multiple AB SCIEX LCMS

Specifically designed to connect to an existing air supply - suitable for one or more AB SCIEX LCMS.

Membrane Technology has been around for many years and is commonly used to filter compressed air with the purpose of generating nitrogen. Ever since Peak Scientific developed their first membrane nitrogen generator they have been working with the manufacturers of Mass Spec and other laboratory applications to ensure a pure, dry and phthalate-free source of nitrogen in the lab.

Peak Scientific have taken huge steps in improving the quality and functionality of their generators; including ingenious little touches which are unique in the market place. All used Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used NM20ZA Nitrogen Generator

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PEAK NM20ZA Nitrogen Generator For API LC/MS/MS

PEAK NM20ZA Nitrogen Generator For API LC/MS/MS

Available from KRSS a fully serviced and refurbished NM20ZA Nitrogen Gas Generator. The NM20ZA is a self contained Gas Station designed specifically for the API analyser range. The NM20ZA is a plug and play system, fully tried and tested, all used Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used NM30LA Nitrogen Generator

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PEAK NM30LA Nitrogen Generator Suitable for Waters/Micromass LC/MS

PEAK NM30LA Nitrogen Generator Suitable for Waters/Micromass LC/MS

Available from KRSS a fully serviced and refurbished NM30LA Nitrogen Gas Generator. The NM30LA is a self contained Nitrogen generator with built-in air compressor. No additional equipment is required. Quiet in operation, the NM30LA utilises membrane technology to selectively remove oxygen, moisture and other gases to leave clean, dry, phthalate free Nitrogen. All used Nitrogen Generators come with the KRSS after sales service from our manufacturer trained engineers as standard.

Used Hydrogen Generators GC

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Parker Domnick Hunter Hydrogen Generators GC for GC Combustion Detector Applications

Parker Domnick Hunter Hydrogen Generators GC for GC Combustion Detector Applications

 The Parker domnick hunter H high purity hydrogen gas generators offer the optimum combination of safe operation, reliability and performance.

Utilising field proven PEM cell technology, hydrogen is produced on demand from deionised water and electricity, at low pressure and with minimal stored volume. Innovative control software allows unrivalled operational safety and reliability.

The H generators ideally supply fuel gas to all known GC combustion detectors used in today’s laboratory workflows. Three models operate at flow rates; 160 ml/min, 250 ml/min and 500 ml/min.

Hydrogen generators are available with Remote Networking software. Remote Networking software allows up to 27 hydrogen generators to be actively controlled from one central PC, and facilitates true cascading capabilities.

Used Hydrogen Generators ICP-MS

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Parker Domnick Hunter Hydrogen Generators ICP-MS for ICP-MS Instruments

Parker Domnick Hunter Hydrogen Generators ICP-MS for ICP-MS Instruments

The Parker domnick hunter 40H-ICP hydrogen gas generator, developed in collaboration with major instrument vendors, meets the initial purge and reaction gas requirements of the Collision Reaction Interface, providing simple routine removal of troublesome spectroscopic indifferences.

Utilising field proven PEM cell technology, hydrogen is produced on demand from deionised water and electricity, at low pressure and with minimal stored volume. Innovative control software allows unrivalled operational safety and reliability.

The 40H-ICP hydrogen generator employs a fully approved low-pressure buffer arrangement, to cater for elevated hydrogen flows required during the purge cycle of ICP-MS Instrumentation.

Hydrogen generators are available with Remote Networking software. Remote Networking software allows up to 27 hydrogen generators to be actively controlled from one central PC, and facilitates true cascading capabilities.

Used Zero Air Generators

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Parker Domnick Hunter Zero Air Generators for GC Combustion Detection Applications

Parker Domnick Hunter Zero Air Generators for GC Combustion Detection Applications

The Parker domnick hunter UHP-ZA zero air generators produce a continuous stream of organic impurity free air from an external dry compressed air source and offer superior limits of detection over and above other modes of supply. Flow rates range from 1 L/min to 30 L/min.

The UHP-ZA generators feature an interchangeable top panel facilitating the direct mounting of any Parker domnick hunter hydrogen generator. The stackable system forms an innovative, modular FID gas station suitable for all known GC combustion detectors such as FID, FPD and NPD.

UHP-ZA generators may also be used in many other chemical analysis and life science applications, including LC/MS source gas, zero and combustion gas for total hydrocarbon analysers and as a gas sensing calibration and dilution gas.

Used Ultra High Purity Zero Nitrogen Generators

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Parker Domnick Hunter Ultra High Purity Zero Nitrogen Generators for GC Makeup Gas and Carrier Gas Applications

Parker Domnick Hunter Ultra High Purity Zero Nitrogen Generators for GC Makeup Gas and Carrier Gas Applications

The Parker domnick hunter zero nitrogen  generators employ robust, field proven technology to produce ultra high purity nitrogen for GC makeup and carrier gas applications. An integral heated platinum catalyst ensures carrier grade nitrogen free from organic impurities to <0.1ppm.

The generators provide a continuous stream of ultra high purity nitrogen from a single ‘plug & play’ unit. Models are available with and without an integral oil free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design features include economy mode as standard which extends compressor life and significantly reduces on going running costs.

Used Ultra High Purity Nitrogen Generators

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Parker Domnick Hunter Ultra High Purity Nitrogen Generators for GC and Other Critical Analytical Applications

Parker Domnick Hunter Ultra High Purity Nitrogen Generators for GC and Other Critical Analytical Applications

The Parker domnick hunter nitrogen gas generators employ robust, field proven technology to produce ultra high purity nitrogen for critical life science, chemical analysis and spectroscopy applications. Flow rates range from 0.55 L/min to 3 L/min, with purities >99.9995%.

The generators provide a continuous stream of ultra high purity nitrogen from a single ‘plug & play’ unit. Models are available with and without an integral an oil free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design features include economy mode as standard which extends compressor life and significantly reduces on going running costs.

Used High Purity Nitrogen and Dry Air Generators

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Parker Domnick Hunter High Purity Nitrogen and Dry Air Generators Analytical Instrumentation

Parker Domnick Hunter High Purity Nitrogen and Dry Air Generators Analytical Instrumentation

The Parker domnick hunter G6 and G7 nitrogen and dry air generators employ robust, field proven technology to produce ultra high purity nitrogen and dry air suitable for chemical analysis applications.

The G6 and G7 generators provide a continuous stream of nitrogen and dry air from a single ‘plug & play’ unit, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative technology, design and function combine to completely eliminate all other modes of supply, facilitating maximum instrument uptime, attractive return on investment and proven analytical performance.

Used Nitrogen Generators LC/MS

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Parker Domnick Hunter Nitrogen Generators LC/MS for LC/MS Applications - with Optional Economy Mode

Parker Domnick Hunter Nitrogen Generators LC/MS for LC/MS Applications - with Optional Economy Mode

The Parker domnick hunter LCMS nitrogen gas generators employ robust, field proven technology to meet the drying, sheath and nebulisation gas requirements of today’s latest LC/MS instrumentation. Five models operate at flow rates from 15 L/min to 50 L/min.

The LCMS generators provide a continuous stream of high purity nitrogen from a single ‘plug & play’ unit. Models are available with and without an integral oil free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.

Used Hydrogen Generators GC/MS

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Parker Domnick Hunter Hydrogen Generators GC/MS for GC and GC/MS Carrier Gas Applications

Parker Domnick Hunter Hydrogen Generators GC/MS for GC and GC/MS Carrier Gas Applications

The Parker domnick hunter H-MD ultra high purity hydrogen gas generators offer the optimum combination of safe operation, reliability, performance and low cost of ownership.

Utilising field proven PEM cell technology, hydrogen is produced on demand from deionised water and electricity, at low pressure and with minimal stored volume. Innovative control software allows unrivalled operational safety and reliability.

The H-MD generators ideally supply GC and GC/MS carrier gas, in addition to all known combustion detectors that are routinely used in today’s laboratory workflows. Four models operate at flow rates; 160 ml/min, 250 ml/min, 500 ml/min and 1100 ml/min.

Hydrogen generators are available with Remote Networking software. Remote Networking software allows up to 27 hydrogen generators to be actively controlled from one central PC, and facilitates true cascading capabilities.

Used Nitrogen and Dry Air Generators

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Parker Domnick Hunter Nitrogen and Dry Air Generators for LC/MS Instruments

Parker Domnick Hunter Nitrogen and Dry Air Generators for LC/MS Instruments

The Parker domnick hunter LCMS20/3 dual flow nitrogen and dry air generators employ robust, field proven technology to meet the nebulisation requirements of LC/MS instruments, both in positive and negative ionisation mode.

The LCMS20/3 generators provide two continuous streams of high purity nitrogen and dry air from a single ‘plug & play’ unit. Models are available with and without an integral oil free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.

Used CO2 Free Air Generators

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Parker Domnick Hunter CO2 Free Air Generators FT-IR & TOC Applications

Parker Domnick Hunter CO2 Free Air Generators FT-IR & TOC Applications

The Parker Zander K-MT-LAB CO2 removal purifier employs, robust, field proven technology to produce ultra high purity CO2 free air for critical FT-IR and TOC purge applications. Flow rates range from 1.5 L/min to 100 L/min, with purities <1 ppm residual C02 and <0.003 ppm residual hydrocarbons.

The K-MT-LAB CO2 removal purifiers provide a continues stream of ultra high purity CO2 free air from a single compact system. K-MT-LAB systems employ both upstream and downstream filtration to safeguard your analytical workflow.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance eliminating the need for other modes of supply.

Used Midigas LAB

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Parker Domnick Hunter Midigas LAB for Multiple LC/MS and Centralised Laboratory Supply Applications

Parker Domnick Hunter Midigas LAB for Multiple LC/MS and Centralised Laboratory Supply Applications

The Parker domnick hunter MIDIGAS LAB nitrogen gas generators employ robust, field proven technology to produce high purity nitrogen for a number of medium flow, high demand analytical applications, such as multiple LC/MS installations. Flow rates range from 9 L/min to 408 L/min, with purities from >95% to >99.999%.

The MIDIGAS LAB generators provide a continuous stream of high purity nitrogen from a innovative modular unit. Models are available with or without an external compressed air system, and offer a compelling alternative to other modes of supply such as cylinders or liquid.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance.

Used NITROSource

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Parker Domnick Hunter NITROSource Part of the Maxigas Range

Parker Domnick Hunter NITROSource Part of the Maxigas Range

With unique design and advanced energy saving technology at its core the market leading NITROSource nitrogen gas generator requires less compressed air to generate more nitrogen.

Together with substantially lower servicing costs, reduced downtime and a longer working life, it adds up to the most cost-efficient nitrogen supply available; significantly more affordable than traditional sources, and delivering huge savings over the lifetime of the generator.

With over 20 years experience in the market, and over 50,000 units installed globally, Parker domnick hunter is first choice for innovative and reliable gas generation technology.

Used High Purity Nitrogen Generators

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Parker Domnick Hunter High Purity Nitrogen Generators for Analytical Instruments including ICP

Parker Domnick Hunter High Purity Nitrogen Generators for Analytical Instruments including ICP

The Parker domnick hunter nitrogen gas generators employ robust, field proven technology to produce high purity nitrogen for life science, chemical analysis and spectroscopy applications. Flow rates range from 5 to 12.5 lpm, with purities from 99.8 to 99.999%.

The generators provide a continuous stream of high purity nitrogen from a single ‘plug & play’ unit. Models are available with and without an integral oil free compressor, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design features include economy mode as standard which extends compressor life and significantly reduces on going running costs.

Used Nitrogen Generators ICP

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Parker Domnick Hunter Nitrogen Generators ICP for Circular Dichroism and ICP Purge Applications

Parker Domnick Hunter Nitrogen Generators ICP for Circular Dichroism and ICP Purge Applications

The Parker domnick hunter CD10 nitrogen gas generator employs robust, field proven technology to meet the complete purge gas requirements of today’s latest Circular Dichroism and ICP instrumentation.

The CD10 generator provides a continuous stream of ultra high purity nitrogen suitable for optic, source and plasma torch purge applications, maximising instrument uptime, productivity and enhancing spectroscopic resolution. The CD10 is extremely quiet in operation and fully approved for use by major instrumentation manufacturers.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.

Used Nitrogen Generators Edge

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Parker Domnick Hunter Nitrogen Generators Edge for Edge Medical Devices

Parker Domnick Hunter Nitrogen Generators Edge for Edge Medical Devices

The Parker domnick hunter G1-LN-800 nitrogen gas generator employs robust, field proven technology to produce ultra high purity nitrogen for critical life science applications.

The G1-LN-800 generator provides a continuous stream of ultra high purity nitrogen from a single ‘plug & play’ unit. This system is available with an integral oil free compressor, and is extremely quiet in operation.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.

Used Dry Air Generators

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Parker Domnick Hunter Dry Air Generators Spectroscopy Applications

Parker Domnick Hunter Dry Air Generators Spectroscopy Applications

The Parker domnick hunter G8 and G9 dry air generators employ robust, field proven technology to produce high purity dry air suitable for spectroscopy applications.

The G8 and G9 generators provide a continuous stream of dry air from a single ‘plug & play’ unit, are extremely quiet in operation and are fully approved for use by major instrumentation manufacturers.

Innovative design and technology facilitate maximum  instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.

Used Nitrogen Generators Agilent 6400 & 6500

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Parker Domnick Hunter Nitrogen Generators Agilent 6400 & 6500 for Agilent 6400 & 6500 LC/MS Instruments

Parker Domnick Hunter Nitrogen Generators Agilent 6400 & 6500 for Agilent 6400 & 6500 LC/MS Instruments

The Parker domnick hunter LCMS64/65 dual flow nitrogen gas generators employ robust, field proven technology to meet the drying, sheath, nebulisation and collision gas requirements of the Agilent Technologies QQQ & Q-TOF instrumentation portfolio.

The LCMS64/65 generators provide two continuous streams of high purity nitrogen from a single ‘plug & play’ unit. Models are available both with and without an integral oil free compressor, are extremely quiet in operation, and fully approved for use by major instrumentation manufacturers.

Innovative design and technology facilitate maximum instrument uptime, attractive return on investment and proven analytical performance, eliminating the need for other modes of supply.