Make your own ultrapure acids

Sub-boiling distillation has been demonstrated to be the best method and the most effective approach in acid purification. Offering an optimal purification method for preparation of high purity reagents, this type of acid distillation uses contactless infrared lamps to vaporize the surface liquid at a temperature typically 20°C below the boiling point. The duoPUR allows the purification of the most common acids such as HNO3 and HCl.
In contrast to conventional distillation systems, where strong boiling action generating aerosolized particles results in contamination of the original liquid with the distillate, the duoPUR acid purification system using sub-boiling technology provides gentle surface evaporation preventing the formation of spray or droplets and yields to ultrapure acids.
The duoPUR offers an alternative to the purchase of expensive high purity acids for trace elemental analyses.
  • Up to 90% cost saving of ultrapure acids
  • High productivity
  • ‘On-demand’ acid distillation
  • Single or double distillation upon on requirements
preventing workflow disruptions

‘TOTAL WORKFLOW’ SAMPLE PREPARATION APPROACH

Look beyond sample digestion and consider the total sample preparation workflow for elemental analysis. Find ways to avoid workflow disruptions that have negative effects on your lab’s outcomes. Consider several parameters like reagents handling, cleaning approach, supply of ultrapure acids and the handling of digestion vessels.

“In the preparation of high purity reagents, there is only one significant and practical choice for the method of purification: sub-boiling distillation"
US EPA SW-846, Chapter 3, Update IVB.

Why sub-boiling technology?

The chemical reagents used during the analysis are an important source of the analytical blank. Sub-boiling distillation has been demonstrated to be the best method of acid purification. It uses contactless infrared lamps to vaporize the surface liquid at a temperature typically 20°C below the boiling point. In contrast to conventional distillation, where strong boiling action generating aerosolized particles results in contamination of the original liquid with the distillate, a gentle surface evaporation during sub-boiling distillation prevents the formation of spray or droplets and yields to a very high pure acid.
Sub-boiling technology

duoPUR Quartz sub-boiling system

The duoPUR consists of two quartz distillation units. Each unit contains two infrared heating elements (1), a water cooled condenser (2), a high-purity PFA collection bottle (3), and a fully automatic acid loading/discharge system. The vaporized liquid is collected on the inclined water-cooled condenser and drips into the collection bottle. The distillation process is microprocessor controlled, allowing the user to set the distillation time and power level by using a compact control terminal with easy-to-read, bright, full-color, touch-screen display. The distillation rate provides hundreds of mL per day, depending on the power setting and the temperature of the cooling water.

How Much Will Sub-Boiling Distillation Save You Each Month?

Real-life experiences and successes

  • Get the best quality to cost ratio of ultrapure acid

    Albhades lab profile
    The Albhades laboratory offers multidisciplinary analysis in the healthcare field (pharmaceutical, cosmetics and medical instrumentation. The labor...
  • Lower costs and increase ROI for water testing labs

    EPAL lab profile
    Empresa Portuguesa das Águas Livres (EPAL) supplies water to approximately three million people. EPAL purchased an ICP-MS to perform trace metals a...
  • Lower costs and increase productivty for environmental studies

    IMEDEA Spain lab profile
    The Mediterranean Institute of Advanced Studies (IMEDEA) and the Marine Science Institute of Andalusía (ICMAN) are prestigious research centers bel...
  • On-demand acid purification for geochemistry research and teaching

    Oregon State University lab profile
    The Keck Lab at Oregon State University, is a world-class teaching and research analytical facility that specializes in the development, applic...

Scientific Papers

A very large scientific library based on how to control the analytical blank is now available for your review.
  • What it takes to achieve the low analytical blanks necessary to produce good ICP/ICP-MS data.

    Tim Michael, Don Potter

  • Determination of Vanadium in Urine by Electrothermal Atomic Absorption Spectrometry Using Hot Injection and Preconcentration Into the Graphite Tube

    K. G. Fernandes et al.

  • Use of microwave-assisted evaporation for the complete recovery of volatile species of inorganic trace analytes.

    Skip Kingston et al.

Scientific Papers

A very large scientific library based on how to control the analytical blank is now available for your review.
  • What it takes to achieve the low analytical blanks necessary to produce good ICP/ICP-MS data.

    Tim Michael, Don Potter

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