Rotor-based Microwave Digestion Systems
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Closed vessel microwave digestion is widely recognized as the most effective technique for the digestion of samples for metals analysis by graphite furnace atomic absorption (GFAA), inductively coupled plasma-optical emission spectroscopy (IPC-OES) and inductively coupled plasma-mass spectrometry (ICP-MS). Because it operated at a much higher temperature (and pressure) than a heated digestion block, it can be applied to a far wider range of samples.
With microwave digestion, the sample are enclosed; thus cross-contamination and loss of volatiles are eliminated and use of high quality vessel materials minimizes contamination.
With microwave digestion, the sample are enclosed; thus cross-contamination and loss of volatiles are eliminated and use of high quality vessel materials minimizes contamination.
ETHOS™ UP
Highest throughput rotors
Simplified method development
Superior safety features
Know-how and remote control
Simplified method development
Superior safety features
Know-how and remote control
ETHOS™ EASY
Safety by design
Ease of use and control
Performance and throughput.
Know-how and support
Ease of use and control
Performance and throughput.
Know-how and support
ETHOS™ LEAN
Compact and economical
Easy and fast handling
User-friendly interface
Reliable and durable hardware
Easy and fast handling
User-friendly interface
Reliable and durable hardware
SRC Microwave Digestion Systems
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For high-throughput laboratories closed-vessel microwave digestion has some limitations.
The digestion vessels must be cleaned prior to each use (normally by a cleaning cycle in the microwave with an acid blank). The vessels must be assembled and disassembled, which is labor intensive, and the sample solution must be transferred to another container prior to analysis, which increases handling and contamination risk. The high temperature and pressure achieved during digestion degrade the vessels over time, resulting in significant consumables costs.
Finally, to ensure full control of the digestion run, the sample weight, matrix type, and acid used must be the same for every sample in the run. This means that a separate run must be performed for each sample type. High-throughput laboratories that have multiple sample types often employ several digestion systems.The Single Reaction Chamber (SRC) technology has none of the limitations of closed-vessel digestion, and has revolutionized digestion applications.
SRC microwave digestion was introduced commercially around ten years ago with ultraCLAVE.
The SRC is a new approach to microwave digestion. As its name suggests, the SRC is a large, pressurized stainless steel reaction chamber into which all samples are placed and digested simultaneously. With SRC, the reaction vessel in effect becomes the microwave cavity, enabling the intensity and distribution of the delivered microwave energy to be optimized to the shape of the reaction vessel. This ensures even heating and therefore eliminates the need to rotate samples during the digestion run. Because the samples are placed inside a pressurized vessel, individual pressure vessels are not needed.
Aside from the reduced handling and labor savings, a benefit of SRC over closed- vessel digestion is that it operates at very high temperature and pressure-up to 300 °C and 199 bar; thus complete digestion of even the most difficult sample tvpes is achieved. In addition, since all samples are in the same vessel, any combination of sample type (or weight) can be digested simultaneously.
The digestion vessels must be cleaned prior to each use (normally by a cleaning cycle in the microwave with an acid blank). The vessels must be assembled and disassembled, which is labor intensive, and the sample solution must be transferred to another container prior to analysis, which increases handling and contamination risk. The high temperature and pressure achieved during digestion degrade the vessels over time, resulting in significant consumables costs.
Finally, to ensure full control of the digestion run, the sample weight, matrix type, and acid used must be the same for every sample in the run. This means that a separate run must be performed for each sample type. High-throughput laboratories that have multiple sample types often employ several digestion systems.The Single Reaction Chamber (SRC) technology has none of the limitations of closed-vessel digestion, and has revolutionized digestion applications.
SRC microwave digestion was introduced commercially around ten years ago with ultraCLAVE.
The SRC is a new approach to microwave digestion. As its name suggests, the SRC is a large, pressurized stainless steel reaction chamber into which all samples are placed and digested simultaneously. With SRC, the reaction vessel in effect becomes the microwave cavity, enabling the intensity and distribution of the delivered microwave energy to be optimized to the shape of the reaction vessel. This ensures even heating and therefore eliminates the need to rotate samples during the digestion run. Because the samples are placed inside a pressurized vessel, individual pressure vessels are not needed.
Aside from the reduced handling and labor savings, a benefit of SRC over closed- vessel digestion is that it operates at very high temperature and pressure-up to 300 °C and 199 bar; thus complete digestion of even the most difficult sample tvpes is achieved. In addition, since all samples are in the same vessel, any combination of sample type (or weight) can be digested simultaneously.
Hundreds of Applications
Milestone Srl
Via Fatebenefratelli 1/5 - 24010 Sorisole (BG) - Italy
Phone: +39 035.573857 | Fax: +39 035.575498
Via Fatebenefratelli 1/5 - 24010 Sorisole (BG) - Italy
Phone: +39 035.573857 | Fax: +39 035.575498
Milestone Srl
Via Fatebenefratelli 1/5 - 24010 Sorisole (BG) - Italy
Phone: +39 035.573857 | Fax: +39 035.575498
Via Fatebenefratelli 1/5 - 24010 Sorisole (BG) - Italy
Phone: +39 035.573857 | Fax: +39 035.575498