Samples submitted for GC and HPLC analysis require pre-treatment
The fundamental step in sample pretreatment is compound extraction from the sample matrix. This is the least evolved -many people still use the Soxhlet extraction method invented in 1879-, most error-prone step in the overall analytical procedure.
Several configurations
to accomplish a wide range of applications
The use of microwave energy to accelerate solvent extraction procedures was first described by Ganzler et al. in 1984. These researchers used polar, microwave absorbing solvents or mixtures to extract crude fat from food and pesticides from soil matrices. Microwave extraction rates were found to be significantly faster, with recoveries comparable or superior to traditional Soxhlet extraction, and with a substantial reduction of the amount of solvent required.
New Milestone ETHOS X is an advanced microwave extraction system offering the best technology currently available for GC or GC-MS and HPLC analysis
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● Reliable GC or GC-MS analysis
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● High sample throughput
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● Low running costs
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● Efficiency and consistency
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● Simplicity
Product Specialist
Mikael Alfredsson
"Our expert in Digestion, Extraction, Syntesis and Evaporation with more than 20 years experience in the field of sales and service. Contact me for if you have questions or need a quotation"
Fast
Microwave extraction is completed in just few minutes. The Milestone ETHOS X can simultaneously process multiple samples in a matter of minutes. Microwave assisted extraction uses closed vessels to heat the extraction solvent above its atmospheric boiling point. The elevated temperature increases the solubility of the analytes of interest and lowers the viscosity of the solvent, allowing it to better penetrate the matrix. This reduced extraction times.
Easy
An important feature of the ETHOS X system is that it easily adapts to existing extraction chemistry. This is accomplished through the use of a unique, patented material, called Weflon. Without Weflon, extractions could only be performed with polar solvents (Acetone, Methanol, etc.) or mixtures of polar and non-polar solvents, because non-polar solvents are not heated by microwaves. Weflon eliminates this problem by acting as a coupling agent. Weflon stir bars are heated by microwaves and they subsequently transfer this heat to the non-polar solvent.
Effective and Consistent
Microwave extraction produces equal or higher analyte recoveries than older methods. Thanks to a combination of higher extraction temperatures, closed vessels, magnetic stirring, and precisely controllable temperature conditions, users of microwave extraction can expect a better quality of the results. The homogeneity of the microwave field and the precision of the temperature control are key elements in microwave extraction.
Economical
Lower solvent usage reduces the costs of solvent purchase and disposal. Microwave extractions are carried out in closed, sealed vessels. The matrix is constantly bathed with hot solvent in a self-promoting reflux action with no loss of volatile analytes or solvent. The use of closed vessels, with the speed and efficiency of microwave heating, allows extractions to be performed with significantly less solvent, without sacrificing accuracy or precision. The simplicity of the microwave technique reduces the attended labor time and increases overall productivity.
Pressure-responsive door schematics.
Direct and contact-less temperature control in all vessels.
EasyCONTROL
Operating Software
The ETHOS X is controlled via a compact terminal with an easy-to-read, bright, full-color, touchscreen display. The terminal is provided with multiple USB and Ethernet ports for interfacing the instrument to external devices and to the local laboratory network. The terminal runs a completely new user-friendly, icondriven, multi-language software to provide easy control of the microwave run. Simply recall a previously stored method or create a new one, press ‘START’ and the system will automatically follow the user defined temperature utilising a sophisticated PID algorithm. Several applications, including all US EPA and ASTM methods available, are preloaded in the ETHOS X terminal. There is no need to input the number of samples or weights being extracted, as the software will automatically regulate the microwave power accordingly. This assures a consistent quality of extraction and simplifies the use of the instrument.
