Introduction to laboratory water purifier
Laboratory water purification equipment is a necessary tool to ensure that the water quality used in laboratory operations meets specific standards. These devices remove impurities and pollutants from water through various technological means to meet different experimental needs.
Ultra pure water machine is a specialized equipment used for producing ultra pure water, usually using pre-treatment filtration, reverse osmosis (RO), deionization, UV sterilization and other methods.

Parameter of ultra laboratory water purifier
| Model | DI-15 | DI-30 | DI-45 | DI-60 | |||
| Output(25℃)* | 15 liters/hour | 30 liters/hour | 45 liters/hour | 60 liters/hour | |||
| Pure water outlet | One deionized water and one reverse osmosis water | ||||||
| Deionized water quality | |||||||
| Resistivity | 15-18.2MΩ.cm | ||||||
| Particle(>0.1μm) | N/A | N/A | N/A | N/A | |||
| RO water quality | |||||||
| Ion rejection rate | 96%-99% (new RO membrane) | ||||||
| Organic rejection rate | >99%, when MW>200 Dalton | ||||||
| Particles rejection rate | >99% | ||||||
| Feed water requirements | Tap water, temperature:5-45℃,pressure:1.0-4.0Kgf/cm2 | ||||||
| Electrical requirements | AC110-240V, 50/60Hz | ||||||
| Power | 55W | 60W | 70W | 78W | |||
Application of lab water purifier
1. Chemical Analysis
- In analytical chemistry laboratories, high-purity water is essential for accurate instrument calibration and sample preparation. It helps ensure reliable results by minimizing interference from impurities.
- For techniques like chromatography (e.g., HPLC), pure water is required as the mobile phase to separate and analyze different compounds.
2. Life Sciences Research
- In molecular biology labs, purified water is used for preparing buffers and solutions for DNA/RNA extraction, PCR, and other molecular biology procedures. Impurities can affect the activity of enzymes and the integrity of nucleic acids.
- Cell culture requires ultrapure water to make media and wash cells. Contaminants in water can harm cell growth and viability.
- In biochemistry research, pure water is needed for assays and protein purification.
3. Pharmaceutical Industry
- Pharmaceutical labs use purified water for drug formulation, quality control testing, and cleaning of equipment. High purity is crucial to meet regulatory standards and ensure the safety and efficacy of drugs.
- Water for injection (WFI) is produced using specialized water purification systems to meet the strictest purity requirements for parenteral drug products.
4. Environmental Monitoring
- Laboratories analyzing environmental samples such as water, soil, and air need purified water for sample digestion, extraction, and dilution. It helps in accurate determination of pollutants and contaminants.
- In water quality testing labs, pure water is used as a reference for comparison and calibration of instruments.
5. General Laboratory Use
- Glassware washing: Purified water is used to rinse glassware to remove traces of detergents and contaminants, ensuring clean and uncontaminated labware for subsequent experiments.
- Reagent preparation: Many laboratory reagents are prepared using purified water to maintain their stability and activity.


