Ultrapure Water (18.2 Mohm) Systems

Ultrapure Water (18.2 Mohm) Systems

Ultrapure Water refers to ASTM (American Society for Testing and Materials) D1193 which states water quality with a resistivity of 18.2 MΩ-cm at 25oC degrees.

Typically all Ultrapure Water/Type 1 systems have a TOC less than 5ppb with a low bacterial, nuclease and endotoxin content. Most Ultrapure Water systems have UV photooxidation as an additional technology. This quality of water is suitable for the most demanding applications.

Type 1 Water Applications

Some of the uses of Type 1 (18.2MΩ) Ultrapure Water produced from this technology are:

  • General analysis
  • Standard buffer
  • Atomic absorption spectroscopy (AAS)
  • Gas chromatography (GC)
  • Ion chromatography (IC)
  • Inductively Coupled Plasma Mass Spectroscopy (ICP-MS)
  • Flow cytometry
  • Cell and tissue culture
  • Pyrogen sensitive applications
  • Micro and molecular biology
  • Polymerase chain reaction (PCR)
  • High-performance liquid chromatography (HPLC)
  • TOC analysis

Our high-quality water systems are manufactured in the UK to the most demanding Standards. We hold all spare parts and consumables for local delivery. Our national team of expert water engineers can carry out routine servicing and maintenance. Complete turnkey packages for installation, commissioning and on-going service are available here.

Type 1 Water / Ultrapure water

Contact Avidity Science

In the Avidity Science Water Technology range, there are a number of systems which provide Ultrapure water and the choice depends whether you require any other water grades in your laboratory.

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How Does Ultraviolet (UV) Light Purification Work?

Typical UV disinfection systems involve the flow of water through a vessel containing a UV lamp. As the water passes through, microorganisms are exposed to intense ultraviolet light energy which causes damage to genetic molecules (i.e. nucleic acids: DNA or RNA) needed for reproductive functions. This damage prevents the microorganism from multiplying or replicating in a human or animal host. Because the microorganism cannot multiply, no infection can occur. Disinfection of water is achieved when UV light causes microbial inactivation.

Deionisation & Ultrafiltration (UF)

Ultrafiltration is used to remove pyrogens (bacterial endotoxins) and nucleases. Ultrafilters use size exclusion to remove particles and macromolecules. Typically, an ultrafilter is deployed at the end of the process to ensure near total removal of such impurities.

Guide to Water Purification

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