In modern laboratory research, nitrogen, as a key inert gas, supports core processes such as cell culture, material preparation, and sample testing. However, traditional supply methods of bottled nitrogen and liquid nitrogen tanks have become “roadblocks” to research efficiency due to issues like fluctuating purity, supply interruptions, safety hazards, and high costs. With over a decade of experience in PSA nitrogen generation technology, Jiangsu Minnuo Group has launched a laboratory-specific PSA nitrogen generator. Boasting the advantages of “on-demand gas production and stable reliability,” it resolves the nitrogen supply challenges in scientific research.
I. Four Major Pain Points of Traditional Nitrogen Supply Restricting Laboratory Development
(1) Unstable Purity Poses Risks to Experimental Data
Precision experiments have stringent requirements for nitrogen purity. For instance, HPLC analysis demands a purity of over 99.999%; otherwise, it may cause chromatographic peak drift and instrument damage. Traditional bottled nitrogen is prone to purity fluctuations during transportation and replacement due to cylinder corrosion and pipeline leaks. After replacing cylinders in a university laboratory, the nitrogen purity often drops below 99.9%, requiring 30 minutes of venting to recover, which seriously impacts experimental progress. Liquid nitrogen tanks also experience purity degradation due to volatilization, introducing uncertainties to long-term experiments.
(2) Prone to Supply Interruptions with Significant Research Losses
Experiments such as microbial fermentation and catalyst evaluation require continuous gas supply. A 40L bottled nitrogen cylinder can only meet the needs of a small laboratory for 1-2 days. Supply interruptions are likely during holidays or due to delayed deliveries. A biotech enterprise once suffered the death of key cell lines due to nitrogen exhaustion on weekends, resulting in losses exceeding 150,000 yuan. Liquid nitrogen tanks have a daily volatilization rate of 5%-10%, requiring special personnel to replenish them frequently. A slight oversight can trigger a supply crisis.
(3) Multiple Safety Hazards and Troublesome Operations
Bottled nitrogen is a high-pressure dangerous good (15MPa), and collisions during transportation can easily cause explosions. Liquid nitrogen, with a low temperature of -196℃, can lead to frostbite if improperly handled, and may cause oxygen deficiency in confined spaces. An operator at a testing institution suffered severe frostbite after contacting liquid nitrogen without wearing protective gloves, forcing the laboratory to suspend operations.
(4) High Comprehensive Costs and Budgetary Pressures
A medium-sized laboratory consumes approximately 120 bottles of nitrogen annually, with a total cost exceeding 40,000 yuan. The annual loss cost of liquid nitrogen tanks exceeds 100,000 yuan, not to mention the investment required for constructing specialized storage and protective facilities, which severely squeezes research funding.
II. Minnuo PSA Nitrogen Generator: Core Solution for Laboratory Nitrogen Supply
(1) Controllable Purity to Meet Full-Scenario Needs
The purity of Minnuo PSA nitrogen generator can be flexibly adjusted (99.5%-99.9995%). Relying on independently developed high-efficiency molecular sieves (specific surface area: 800-1000㎡/g, adsorption capacity increased by 20%) and an intelligent control system, the purity fluctuation is controlled within ±0.001%. A semiconductor laboratory used it to supply gas to lithography equipment, maintaining a stable purity of 99.9995% for 6 months and reducing equipment failure rate by 35%.
(2) 24/7 Gas Supply for Uninterrupted Experiments
Using compressed air as raw material, the equipment can produce gas continuously once connected to a power source. Equipped with a large-capacity buffer tank, it can handle sudden increases in gas consumption. A chemical enterprise used it for a 72-hour catalyst experiment without any interruptions. Compared with bottled nitrogen, the efficiency increased by 50% and the cost decreased by 40%.
(3) Safe Design for Worry-Free Operations
Operating at low pressure (0.1-0.8MPa), it eliminates the risk of high-pressure explosions. Without the need for liquid nitrogen, it avoids potential hazards of low-temperature frostbite and oxygen deficiency. The equipment is also equipped with overpressure, overload, and high-temperature protection devices, featuring a flame-retardant shell and leak-proof pipelines, significantly reducing laboratory safety risks.
(4) Long-Term Economy to Save Research Budgets
The service life of Minnuo PSA nitrogen generator is 10-15 years, with a cost of only 0.3-0.5 yuan per cubic meter of nitrogen—1/5 of bottled nitrogen and 1/10 of liquid nitrogen. A medium-sized laboratory using the MN-PSA-5 model incurs an annual total cost of 5,000 yuan, saving 35,000-95,000 yuan annually compared to traditional methods, and the investment can be recovered within 3-5 years.
III. Scenario-Specific Customization to Adapt to Different Laboratory Needs
(1) Biomedical Laboratories
Targeting the needs of cell cryopreservation and HPLC analysis, a medical-grade solution is launched, equipped with a 0.01μm filter and ultraviolet sterilization device, with noise ≤55dB. After adopting it, a biotech enterprise increased the stem cell recovery rate from 80% to 95% and shortened the HPLC experiment cycle by 20%.
(2) Materials Science Laboratories
Material preparation requires stable flow rate and high purity. Minnuo’s material-grade solution adopts a modular design (gas production capacity: 1-50Nm³/h) and is equipped with a high-precision flow controller. A university used it to prepare graphene films, improving thickness uniformity by 20% and reducing defect rate by 15%, with the results published in authoritative journals.
(3) Environmental Monitoring Laboratories
To avoid sample contamination, the environmental protection-grade solution is equipped with a VOCs adsorption column (adsorption efficiency: 99.9%) and an oil-free design. A provincial monitoring center used it to process water quality VOCs samples, significantly improving detection accuracy and successfully passing the national blind sample assessment.
(4) Food Testing Laboratories
The food-grade solution uses 3A hygiene standard materials, holds ISO 22000 certification, and real-time monitors nitrogen water content (dew point ≤-40℃). A testing institution used it to detect pesticide residues, reducing the detection limit by 30%, and the results were recognized by regulatory authorities.
IV. Minnuo’s Strength: Dual Guarantee of Technology and Service
Minnuo has a R&D team composed of more than 10 doctors and has obtained 38 patents (including 8 invention patents). Its “high-efficiency and energy-saving PSA technology” won the Second Prize of Jiangsu Provincial Science and Technology Progress Award. In production, core components of international brands are carefully selected, and the equipment undergoes 12 strict inspections with a 100% qualification rate. It has served more than 2,000 laboratories nationwide and been exported to over 20 countries.
In terms of after-sales service, service centers are established in more than 30 cities across the country, providing one-stop services including “pre-sales selection, installation and commissioning, regular maintenance, and fault repair,” with a 2-hour response time and 24-hour on-site service (in major cities). When the purity of the equipment in a university laboratory fluctuated, engineers arrived at the scene within 2 hours to resolve the issue, ensuring the smooth progress of experiments.
V. Customer Testimonials
- School of Life Sciences, a university: “After using Minnuo’s PSA nitrogen generator, the cell recovery rate reached 96%, the annual cost was reduced by 80%, and all safety hazards were eliminated.”
- A biopharmaceutical enterprise: “The equipment operates stably, the HPLC resolution is increased by 15%, and the experiment cycle is shortened. It is a reliable partner for new drug research and development.”
With the advantages of stability, safety, and economy, Jiangsu Minnuo‘s PSA nitrogen generator injects new vitality into laboratory research.
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