Avidity Science Blog

  1. Total Organic Carbon (TOC)

    Total Organic Carbon (TOC)

    Water contains so many different compounds, making it impractical to measure them individually. If oxidised, water will produce the following fractions.

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    • How Is Water Purity Measured?

      How water purity is measured?

      The purity level of water can be tested by measuring electrical conductivity or resistivity. On-line monitoring of total organic carbon (TOC) is also needed to validate the continued quality of water purification systems.

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    • What is Ultraviolet (UV) Photo Oxidation?

      Ultraviolet (UV) Photo Oxidation

      Ultraviolet (UV) light is used to disinfect water. Short-wavelength UV lamps wrapped in a pure quartz sleeve produce radiation at precise wavelengths of 185 and 254 nm. 

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    • How does Ultrafiltration (UF) work?

      How does Ultrafiltration (UF) work?

      Ultrafiltration (UF) uses a super fine but tough, selectively permeable membrane made of either polymer materials or ceramics to remove pyrogens (bacterial endotoxins) and nucleases. This method is critical to producing cost-effective water suitable for tissue culture.

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    • How does Deionisation work?

      How does Deionisation work?

      Deionisation uses synthetic ion-exchange resins to chemically remove ions from feed water. As the water passes through the ion exchange resin beads, hydrogen and hydroxide ions are chemically exchanged with dissolved minerals to form water. Learn more here in this article.

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    • How does Reverse Osmosis work?

      How does Reverse Osmosis work?

      Reverse osmosis (RO) is the most economical method of removing up to 99% of your feed water’s contaminants. It is a percentage rejection technology.  The resulting product water is therefore dependent on the quality of the incoming water.

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    • Why do laboratories need pure water?

      All laboratories rely on pure water to produce reliable and repeatable experiments. Avoiding contamination at the bench is essential to any biological methods and the water quality used for sample and solution preparation is as important as other reagents.

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    • Biological Safety Cabinet – Infectious disease testing containment

      Biological Safety Cabinet

      NuAire provides class II Biological Safety Cabinets for your “point of care” microbiology laboratory.

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    • An autoclave heating cycle that is quicker and safer

      Systec Autoclaves

      Our comprehensive range of Systec Autoclaves have up to 50% shorter heat up times as traditional autoclaves. Read more here.

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    • Tips for Autoclaving Solids

      Systec Autoclaves

      When autoclaving solids, it’s important to remove all air from the products to be sterilised to ensure precise, reproducible and validatable sterilisation.

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