1. Core Application Scenarios of Miniature Nitrogen Generators in Laboratories
With the characteristics of on-demand gas production, controllable purity, and easy operation, miniature nitrogen generators have become the mainstream solution for nitrogen supply in laboratories. Their specific applications can be divided into four categories:
1.1 Supporting Analytical Instruments
As the carrier gas or auxiliary gas for precision instruments such as Gas Chromatography (GC) and Liquid Chromatography-Mass Spectrometry (LC-MS), they need to provide high-purity nitrogen with a purity of over 99.999% to ensure the accuracy and reproducibility of detection results. For example, in GC analysis, nitrogen can effectively prevent sample oxidation and ensure clear chromatographic peaks; in LC-MS, it is used for solvent degassing to reduce baseline noise.
1.2 Creation of Inert Environment
- Sample Protection: For oxygen-sensitive materials such as organic compounds and biological samples, nitrogen is used to replace the air in sealed containers or glove boxes, maintaining a low-oxygen and low-humidity environment with oxygen content < 100ppm and dew point < -40℃, thereby extending the sample shelf life.
- Reaction Atmosphere Control: In experiments such as organic synthesis and material preparation, nitrogen is introduced to remove oxygen and moisture from the reaction system, preventing side reactions. For instance, the synthesis of lithium battery electrode materials requires full-process protection with nitrogen.
1.3 Auxiliary Experimental Operations
- Instrument Purging and Cleaning: Dry nitrogen is used to purge precision components such as chromatographic columns and injection ports, removing residual solvents and impurities and extending the service life of instruments.
- Sample Concentration and Drying: In equipment like rotary evaporators, nitrogen purging can accelerate solvent volatilization while preventing sample oxidation.
1.4 Cross-Field Special Applications
- Biological Laboratories: Maintaining an anaerobic environment during cell culture or used for short-term storage of low-temperature samples as a substitute for liquid nitrogen.
- Electronic Material Laboratories: In semiconductor chip testing, nitrogen is used for wafer surface cleaning and oxidation protection.
2. Core Advantages of Miniature Nitrogen Generators from Jiangsu MINNUO Group
Relying on the technical accumulation of air separation equipment manufacturing in Jiangsu (such as the industrial cluster advantages in Wuxi, Suzhou, etc.), MINNUO miniature nitrogen generators have formed multi-dimensional competitiveness in laboratory scenarios:
2.1 Performance Precision: Adapting to High Laboratory Requirements
- Wide-Range Purity Adjustment: Adopting improved Pressure Swing Adsorption (PSA) technology, the nitrogen purity can be precisely adjusted between 95% and 99.999%. It can not only meet the basic needs of sample storage but also match the high-purity requirements of instruments like LC-MS, eliminating the need to purchase multiple devices additionally.
- Stable Output Guarantee: Equipped with a multi-stage pre-treatment system (precision filter + deep dryer), it ensures that the oil content in the gas source is < 0.01ppm and the dew point is as low as -35℃, preventing impurities from affecting experimental results. Meanwhile, through the dual-tower alternating adsorption design, 24-hour continuous gas production is realized without the risk of supply interruption.
2.2 Design Adaptability: Meeting the Characteristics of Laboratory Scenarios
- Compact Layout: The minimum machine size can reach 590×570×1020mm, with a weight of only about 50kg. It can be directly placed next to the experimental bench or in a fume hood, solving the problem of limited space in small laboratories.
- Low-Noise and Energy-Saving Operation: Adopting a silent compressor and an optimized air duct design, the operating noise is ≤ 55dB (much lower than the industry average standard of 60dB), which does not interfere with precision experiments. The rated power is as low as 50W, and the power consumption for continuous operation for one day is only 1.2 kWh. The long-term use cost is reduced by more than 60% compared with bottled nitrogen.
2.3 Operation and Maintenance: Reducing Laboratory Management Costs
- Fully Automatic Control: Equipped with a PLC touch control system, it can preset purity and flow parameters, support scheduled start-stop and automatic fault alarm. Laboratory personnel can operate it without professional training, reducing labor input.
- Long-Term Maintenance-Free Design: Adopting a special molecular sieve filling process and fatigue-resistant pneumatic valves (with a service life of over 3 million times), the replacement cycle of core consumables is extended to 5-8 years, which is much higher than the industry average of 3 years, reducing the impact of shutdown maintenance on the experimental progress.
2.4 Safety and Compliance: Meeting Laboratory Management Standards
- Multiple Safety Protections: Built-in overpressure protection, air leakage detection, and emergency shutdown devices. When the nitrogen concentration exceeds the standard, it automatically links with the ventilation system to avoid the risk of suffocation.
- Complete Compliance Certifications: The equipment has passed CE and ISO 9001 certifications, and the machine body is treated with food-grade plastic spraying, which can be safely used in laboratories with high cleanliness requirements such as medicine and biology.
2.5 Customization Capability: Matching Personalized Needs
- It can customize flow (12L/min ~ 20Nm³/h) and pressure (0.1 ~ 0.7MPa) parameters according to the number of laboratory instruments (such as multiple parallel GCs) and support modular expansion.
- Provide customized after-sales solutions: including on-site installation and commissioning, on-site replacement of consumables and other localized services, solving the pain point that laboratories lack professional equipment maintenance personnel.
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