Once the adsorbent has reached its maximum saturation capacity, the cylinder goes through a depressurisation cycle resulting in near-vacuum conditions inside the cylinder. This results in the by-product gas molecules separating from the adsorbent so they can be flushed from the cylinder making it ready for further use. During the depressurisation cycle the cylinder cannot be used for further nitrogen generation making it unsuitable for applications where a continuous supply of nitrogen would be required.

To ensure the highest purity of nitrogen (up to 99.9995% nitrogen purity can be achieved with PSA Nitrogen generators) and enable continuous, uninterrupted nitrogen production, Pressure Swing Adsorption technology uses two identical Carbon Molecular Sieve columns which are alternately pressurized with compressed air.

When column 1 is pressurized, the non-nitrogen molecules are trapped in the porous carbon molecular sieve material and pure nitrogen travels through the column to be collected in a nitrogen receiver tank. At the same time, the second column is depressurized to atmospheric pressure to vent the trapped contaminant molecules from the column. Then the cycle continues by pressurizing column 2, while column 1 undergoes depressurization. Switching generation between cylinders in this way, with spent cylinders being cleaned whilst another is generating nitrogen, allows for a continuous flow of nitrogen from the generator.

The NM-3G Nitrogen Generator is designed specifically for use with any LC/MS instrument. This Premium model offers safeguards that are unique to Peak Scientific generators and effectively deliver reassurance and confidence for critical functions.

The Peak Scientific has been operating in Africa now for two and a half years and has continued to grow steadily.

Due to the need for expansion Peak acquired this superb NEW building at the end of March 2011. Our new Peak Africa office is headed up by  business development manager; Dean Milbank to oversee operations with the support of our field service engineer Andy Von Arx, at hand to deliver exceptional service, training and support.

Our office based in Somerset West, 50km outside of Cape Town provides the ideal location for a stable base allowing much greater expansion of our services across the territory.

Both the Management & staff of Peak Scientific Instruments Ltd were delighted to receive the Queen’s Award in 2004 & 2007. Accepting the award for the 3rd time Peak Scientific can only attribute the success to their strong international team, communication throughout the world by means of their exhibition team and strong client relationships through regular visits to the regions allowing increased awareness and knowledge of the products.

Peak Scientific pride themselves on service, this is shown through their dedicated team of support engineers, employed directly by Peak, based in key locations throughout the world. Their product knowledge and ability has ensured that they have beaten international competition to win business worldwide.

“Every week we have Engineers and Sales people travelling to every corner of the Globe spreading the news. This Award is recognition of their hard work and many weekends spent travelling away from home. Against the current economic climate it is a significant achievement.” - Robin MacGeachy, Managing Director of Peak Scientific

Pressure swing adsorption (PSA) is said to be the preferred choice for generating ultra-high-purity nitrogen.

The technology is self-regenerating, offering users a reliable and durable source of ultra-high-purity nitrogen with little need for attention.

The ANG range also provides a source of clean, dry air.

Peak systems are available with or without an internal air compressor.

The ANG range of air and nitrogen generators is designed specifically for use with GC applications.

Models are available with different flow rates and can be used with multiple systems.

The generators offer ultra-high-purity nitrogen suitable for GC, ICP, DSC, TGA, TOD, TMA and DMA, plus clean, dry air from a single system.

This capability means one generator can cater for the requirements of multiple applications.

The generators are designed as plug-and-play systems, making installation simple.

Technical specifications of the ANG250(A) include: UHP nitrogen: 250cc/min; dry air: 1,200cc/min; max output pressure: 5.5 bar/80lb/in2; pressure dew point: -70C/94F; outlet port: 1x 1/4in BSP female; electrical requirements: 230V 50Hz 2.5A/110V 60Hz 5A; power consumption: 230V - 575W/110V - 550W; dimensions (W x D x H): 43 x 41 x 88cm/17 x 16 x 35in; weight: 62kg/137lb.

Technical specifications of the ANG600(A) include: UHP nitrogen: 600cc/min; dry air: 1,500cc/min; max output pressure: 5.5 bar/80lb/in2; pressure dew point: -70C/94F; outlet port: 1x 1/4in BSP female; electrical requirements: 230V 50Hz 2.5A/110V 60Hz 5A; power consumption: 230V - 575W/110V - 550W; dimensions (W x D x H): 43 x 41 x 88cm/17 x 16 x 35in; weight: 62kg/137lb.

Technical specifications of the ANG1000(A) include: UHP nitrogen: 1,000cc/min; dry air: 1,500cc/min; max output pressure: 5.5 bar/80lb/in2; pressure dew point: -70C/94F; outlet port: 1x 1/4in BSP female; electrical requirements: 230V 50Hz 2.5A/110V 60Hz 5A; power consumption: 230V - 575W/110V - 550W; dimensions (W x D x H): 43 x 41 x 88cm/17 x 16 x 35in; weight: 75kg/165lb.

Technical specifications of the ANG3000(A) include: UHP nitrogen: 3,000cc/min; dry air: 3,000cc/min; max output pressure: 5.5 bar/80lb/in2; pressure dew point: -70C/94F; outlet port: 1x 1/4in BSP female; electrical requirements: 110V 60Hz 6A/ 230V/50Hz 3A; power consumption: 230V - 690W/110V - 660W; dimensions (W x D x H): 43 x 41 x 123cm/17 x 16 x 50in; weight: 100kg/220lb.

Peak Scientific have established our own independent office in Shanghai to offer a full, direct, sales, service and support network to the China market. Our staff consist of Sales led by our Sales Manager, Gordon Gao. We also have 2 engineers, Xiaoming Luo and Jingzhou Zheng who have been fully trained at our head office and manufacturing facility in the UK. Our offices are managed by Kelly Pu and she is supported by Huishan Chapman who is on temporary secondment from the UK. This is a very exciting time for us and shows our full commitment to directly support our Chinese customers both old and new. Should you have any questions regarding our new Shanghai office or need clarification or further information about Peak and our China office please do not hesitate to contact us directly, our contact details are shown below

Peak Scientific have established our own independent office in Shanghai to offer a full, direct, sales, service and support network to the China market. Our staff consist of Sales led by our Sales Manager, Gordon Gao. We also have 2 engineers, Xiaoming Luo and Jingzhou Zheng who have been fully trained at our head office and manufacturing facility in the UK. Our offices are managed by Kelly Pu and she is supported by Huishan Chapman who is on temporary secondment from the UK. This is a very exciting time for us and shows our full commitment to directly support our Chinese customers both old and new. Should you have any questions regarding our new Shanghai office or need clarification or further information about Peak and our China office please do not hesitate to contact us directly, our contact details are shown below

The range consists of three cutting edge Nitrogen Generators. The 3010, 3020 & 3030

• The Genius² 3010 has been designed specifically as a stand-alone system to provide gas to single LCMS applications which require a high nitrogen flow, up to 64 l/m
• The Genius² 3020 combines’ two individual systems with separate Nitrogen outputs into a single compact unit, thus allowing two separate Mass Spectrometers to be supplied by the same Generator with independent control.
• The Genius² 3030 conbines 2 individual systems with separate Curtain, Source & Exhaust gasses for AB SCIEX LCMS instruments supplied by the same Generator with independent control, and is compatible with the full AB SCIEX range .

All the Generators in the Genius² are range are designed with the same concept offering a mobile, quiet, convenient and simple plug and play system that is more cost effective than any other gas supply method.

Peak pride themselves in being specialists in gas generators. This focus ensures the development of quality and reliable products as well as the ability to provide world class international service and support that is unrivalled within the market.

Its unique features include a ‘Rapid Restart’ function that allows the Fusion 1010 to be operational again after a power cut in a fraction of the time that it normally takes to re- start a high purity system. This saves laboratory professionals precious time after power cuts, which can be an everyday occurence in countries where supply is erratic. So ‘down time’ is greatly reduced and productivity and critical analysis functions are maintained.

Peak’s unique new generator supports both GC- ECD and GC- FID applications and may also be used for THA applications.

The Fusion 1010 essentially combines two technologies to produce Zero Nitrogen (ultra high purity nitrogen (99.9995%) with no hydrocarbons as methane) and Zero Air (air with no hydrocarbons as methane) from 2 separate outlets within one brilliantly engineered generator.

The system guarantees production of high purity results – even in highly polluted environments. As a result, with Peak’s Fusion 1010, hydrocarbons will not cause any higher baselines.

Another important feature of the Fusion 1010 Generator over more traditional supplies, such as cylinders, is that it removes the need to re- calibrate applications, giving highly consistent and technically reliable analysis results. A single sample will reliably give the same results each time.

Under these superb innovations lie a myriad of standard features Peak Scientific pack into every generator supported by the best service & support in the industry.

In what has been a year of opportunity for visionary science led companies, it is comforting to report that innovation is alive and well, not only in the multi nationals, but, in some of the smaller scientific businesses also. 

Peak Scientific, the global gas generator manufacturer has enjoyed a buoyant year fueled, behind the scenes, by a desire to improve its products and become a ‘best of breed’ manufacturer.

To accelerate this period of product development and growth the company has given itself a bold brand makeover by modernizing its highly recognizable Pyramid brand mark and emboldening its Logotype to stand it in good stead as the company gears up for a new assault on fresh and existing customer bases. 

Robin MacGeachy, Managing Director said; “our Pyramid device has had a long association with the business and held a significant degree of brand equity. The new Peak logo gives us more brand standout.” 

Simultaneously, the company has taken huge steps in improving the quality and functionality of its generators. Peak engineers have re-designed its core range of Nitrogen Gas Generators and implemented a series of highly beneficial improvements unique to the marketplace. These improvements include ingenious little touches that reduce vibration and noise.

Robin commented; 

“Our design engineers have worked tirelessly to improve on the existing range of systems. They can be justly proud of their achievements and we have called the new range ‘Genius’ to reflect the innovative developments devised for our products.” 

The new range overall includes four models. ‘Genius NM32LA’ is the smarter brother of the NM30LA. The new model can now fulfill the requirements – pure nitrogen - for almost all LCMS Models available in the market today. The new ‘Genius NM32LA’ removes oxygen, moisture and other gases to leave clean, dry phthalate free Nitrogen. Two internal air compressors make this model independent from in-house air supplies.  Fitted castors allow the unit to nimbly fit into tight lab spaces and the unit has been approved by major mass spec manufacturers for their LCMS applications.

The ‘Genius AB-3G’ has been re-designed with additional compressor capacity.  This allows the generator to cycle the compressors more frequently, maximizing compressor life. The smart in-built Alert System warns the users of any impending issues but manages the compressors to maintain a full output flow for the generator. It also has anti vibration, low noise, improved drainage and is safer to use. 

Two models of the new range fit into the 'High Value’ bracket and replace previous generator designs while the remaining two models are technically advanced, particularly in terms of safeguards, and fall emphatically into the Premium category. These safeguards are unique to Peak Scientific generators and effectively deliver ‘reassurance and confidence for critical functions’. The safeguard technology works by having three internal compressors instead of two. The spare compressor can take on the work load if one of the others fail, ensuring that a constant outlet flow and pressure of nitrogen is maintained. This guarantees the customer an uninterrupted supply of gas even if there is a technical problem. 

The generator can then be repaired without the customer ever experiencing 'down-time' or going without gas. This is an excellent facility for critical environments. The additional compressor capacity also facilitates a better duty cycling of the compressors, thus prolonging compressor life.

“These generators are a completely new design in terms of engineering and end user benefits. The ergonomics and aesthetics have also been improved and overall we now feel confident we offer the best gas generators on the market. Our after sales service is still world class, though you may not need it very often with these new models” said Ann McLaren, Events and Communications Manager.  

The 'High Value' versions are now smaller in size and fit unobtrusively under a standard lab bench. We have reduced the noise emitted from the internal compressors to offer less acoustic pollution to the customer. Vibration and heat emissions have also been reduced to an absolute minimum. The new models feature ‘alert’ and ‘service due’ LEDs to make the customer aware of problems and service requirements. They also offer a 230v single phase plug and play system and are easy to install.

The ‘Genius’ models all come on castors to fit easily under standard lab benches and feature improved sound insulation for quieter operation. 

The Premium generators also come with a PLC and integrated fault diagnosis, alarm and control panels. The new model has been tested in the field for over 1 year to ensure the design is sound and ultra-reliable.

Max operating temperature has been raised to 30 degrees centigrade and to prevent failure due to usage in excessive ambient temperatures, the system now features a thermostat measuring ambient temperature. This causes the system to alarm if the generator has been running in such an environment for too long a period (thus preventing system damage).

These design-led improvements, that we lovingly refer to internally as ‘tinkering’, are the result of in-depth product analysis, customer feedback and Peak Scientific’s desire to innovate and be market leaders.  They have sourced high performance, robust parts and incorporated these into the generators construction. The compressors are stored in a separate compartment, which is well insulated to reduce noise. Heat generated by the compressors is not just vented, but utilized to re-heat the air going into the membranes, reducing the risk of condensation and moisture build up.

They have designed a lot of other clever improvements, such as improving internal layout for more efficient operation and easier access for maintenance. In a nutshell, the Peak Scientific ‘Genius’ range offers lots more reliability which means virtually no downtime, they are more robust, quieter, give off less vibration and they take up less room in the Lab. 

Touch of Genius indeed.