MICROWAVE SCIENCE FOR BETTER CHEMISTRY
Milestone s.r.l. Home Page

Total microwave sample preparation

In 1990, Milestone was the first company to introduce the concept of Total Microwave Sample Preparation. This approach enables analysts to perform every sample preparation step associated with atomic spectroscopy analysis in a single microwave labstation. This significantly reduces overall sample preparation time and eliminates the need for laboratories to invest in multiple conventional instruments, such as vacuum drying ovens, heating blocks, etc. The all-new ETHOS 1 further develops and expands this concept, allowing the user to switch from closed vessel digestion to open vessel digestion, acid evaporation, solvent extraction, or protein hydrolysis in just a few seconds.

Open vessel digestion

Vacuum evaporation

Milestone’s exclusive MOD packages converts the ETHOS 1 to a fully automated microwave open vessel digestion system, to rapidly and safely digest multiple large amounts of organic samples, such as food, feed, pharmaceuticals, polymers, oils, etc

With Milestone’s unique vacuum evaporation technology, the ETHOS 1 turns into a true microwave evaporator, allowing the user to carry out safe and complete evaporation of acids and organic solvents. No sample transfer is required, as the evaporation takes place in the same vessels previously used for digestion/extraction.

 

Solvent extraction

Protein hydrolysis

The ETHOS 1 becomes a ‘microwave Soxhlet’, to perform a wide range of solvent extraction from various samples. Typical applications include pesticides and PCBs extraction from environmental samples, additives extraction from polymers, fat extraction from food and feed samples, and many others. The extraction is completed in 10-20 minutes, and requires a fraction of the solvent volume needed by conventional techniques.

The ETHOS 1 allows for vapour phase protein hydrolysis within 30 minutes in inert, anaerobic conditions, without thermal degradation of the amino-acids, or cross contamination of the solutions. This assures a substantial time reduction over standard methods, which often require up to 48 hours.

More details on Protein Hydrolysis