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Water Purification Systems

How to choose a water purification system for your lab, key applications, and a quick tip on maintenance

by Lab Manager
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MilliporeSigma Milli-Q® IQ 7003/05/10/15 Ultrapure & Pure Water Purification System,

The purpose of water purification systems is to remove contaminants from tap water, including inorganic ions, organics, colloids, gases, bacteria, and proteases to ensure the accuracy of experimental results. Depending on your applications and the space you have in your lab, there are many different filtration types, water purification techniques, and system configurations that could work best. For a list of lab water purification system manufacturers, see our online directory:

6 Questions to Ask When Buying a Water Purification System:

  1. What level of purification do you need?
  2. How much water will you require at one time?
  3. How often do filters and cartridges need to be replaced?
  4. How long does it take for the unit to purify the water?
  5. Where will the system be located, and do you have enough space?
  6. Can the system be expanded if demand increases?

Other Applications

Spectrophotometry is an important technique in the lab for detecting and characterizing biomolecules and water purification is an essential step to generate accurate and reproducible data from spectrophotometers. Most water purification systems use two or more techniques to achieve different levels of water purity, and are most effective in removing different types of contaminants.

Maintenance Tip

To keep your water purification system happy, ensure cartridges are replaced on a regular basis. Manufacturers recommend using their brand of cartridge with their systems, but third-party options are available, often at a cheaper cost. Lab professionals will want to be careful when using such options, however, as the quality can be lower and using such third-party options may void the original warranty.