The power of the analytical blank.
Acid Purification Systems
Up to 90% cost savings of ultra-pure acids by purifying low-cost reagent grade acids.
On-demand acid purification
Works with a variety of acids; also, suitable for purification of organic solvents.
Designed for your needs
Single, double or triple distill reagents (ppb, ppt)
Effective and efficient
Re-purify contaminated acids with no waste.
Learn more about the factors that impact the analytical blank, digestion techniques, and Milestone’s Clean Chemistry products designed to help you maximize your ICP-OES and ICP-MS data.
“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.
Reagent contamination increases the background concentration of analytes present in a sample. Because of this, laboratories purchase expensive high-purity acids for trace metal (element) analyses. With small samples sizes, it is critical to keep blank levels low for good reproducibility. Milestone’s duoPUR and subCLEAN, sub-boiling distillation systems allow laboratories to make their own high purity acids at dramatically reduced costs.
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.
With conventional distillation, the boiling of acid generates aerosolized particles, resulting in contamination of the distillate. In contrast to this, gentle surface evaporation during sub-boiling distillation prevents the formation of spray or droplets, yielding high purity acids.