Mars 6, DiscoverPrep

Microwave-assisted analytical methods are becoming increasingly important in both research and routine analysis. With the microwave laboratory systems Mars 6 and Discover Prep, the established "microwave digestions" for element determination can be carried out and, in addition, the "microwave-accelerated solvent extractions" can be performed easily, conveniently, safely and cost-effectively. This microwave-accelerated extraction technique in the Mars 6 and Discover Prep is very often used as a replacement method for Soxhlet extraction.

Existing extraction conditions, such as the choice of solvent, can easily be transferred to microwave extraction. On the one hand, the drastic reduction in time from many hours to a few minutes is a significant advantage of this new microwave technology. On the other hand, microwave extraction in the Mars 6 enables simultaneous sample preparation of up to 40 samples within a short time. Alternatively, up to 96 samples can be processed overnight in the Discover Prep using an autosampler. In addition, the Discover Prep can be integrated into combination systems with LC or GC and autosampler, which reduces the manual workload to a minimum.

In addition to saving time, costs are also reduced by significantly minimizing the solvent by a factor of 10 - 20, which in turn results in lower acquisition and disposal costs. disposal costs. The use of considerably less solvent means that, in addition to the occupational health and safety aspect, the environmental protection concept also comes into play, as solvent exposure is kept to a minimum. Various extraction vessels made of different materials and volumes are available.

Typical application examples

• Extraction of plastic additives (anti-oxidants, UV stabilizers, plasticizers, etc.)
• Dissolving polymers to determine molecular weight
• Azo dyes, phthalates and pesticides in textiles
• EPA 3546: Herbicides, pesticides, PCBs, PAHs, CHCs, dioxins and furans TPH in soils, plants, water, sewage sludge, sediments, soil, etc.
• Polyfluorinated compounds PFC in environmental matrices
• Crop protection formulations
• Metabolites, residue analysis
• Speciation
• Active pharmaceutical ingredients from patches, coated tablets, etc.
• CHCs in pig fat
• Extraction of fat from fish tissue
• Residue analysis of pesticides in foodstuffs
• Gossypol and pyrimidine glucosides in beans and cottonseed
• Steroid ergosterol
• Ochratoxin A in coffee
• Dithiocarbamate fungicides in tobacco and peach
• Terpenes in must
• Alkaloids
• Pectins in orange peel
• Essential oils
• Colorants Carotenoids from food
• Antibiotic in egg
• Flavors in food
• Cytostatics Taxanes in yew
• Methyl mercury in food
• Determination of saturated and unsaturated fatty acids/FAME
• Determination of the cholesterol content in eggs and egg products
• Determination of the vitamin content in food
• Extraction of glucosinolates from plants
• Determination of the hydroxyproline/binding tissue protein content
• Derivatization reactions for § 64 LFGB methods (fatty acids, cholesterol, vitamin determination)
• Fat extraction according to Weibull-Stoldt, Röse-Gottlieb, Schmidt-Bondzynski etc.
• Quantitative determination of methoxyl and ethoxyl according to Zeisel by simultaneous digestion with HJ and extraction with xylene

Versatility and flexibility of microwave-accelerated solvent extraction

Simply practical

Existing extraction conditions, such as the choice of solvent, can easily be transferred to microwave extraction. Significant advantages of this new microwave technology result on the one hand from the drastic reduction in time due to the increase in extraction temperature above the atmospheric boiling point. On the other hand, microwave extraction enables the simultaneous sample preparation of up to 40 samples on one turntable. In addition to the time saved, costs are also reduced by significantly minimizing the solvent by a factor of 10 - 20, which in turn results in lower acquisition and disposal costs. By using considerably less solvent, the environmental protection concept also comes into play in addition to the occupational health and safety aspect, as solvent exposure is kept to a minimum.

Handling the extraction containers is totally simple. Simply place the lid on the glass container and you're done.

Flexibility

Extraction vessels for a wide range of different sample quantities / volumes are available in the microwave extraction devices. From very small quantities with volumes of 4 ml to jumbo containers with 300 ml for large sample quantities, everything is possible.

Speed

Reduces extraction time to less than 15 minutes with a throughput of up to 40 samples simultaneously. Microwave energy heats the solvents to extraction temperature within minutes, reducing sample preparation time by a factor of 50 compared to Soxhlet extraction.

Cost effective

With the same amount of solvent for 32 Soxhlet extractions, you can perform 500 microwave-activated extractions in the MARS X. This results in enormous cost savings due to reduced solvent consumption (purchase and disposal).

High sample throughput

Up to 40 extracted samples simultaneously per throughput increase productivity.

Efficiency

The sample stirring integrated in MARS 6 and Discover Prep improves extraction efficiency through shorter extraction times, higher yields, reduced solvent consumption and higher reproducibility.