köp ritalin Samples submitted for GC and HPLC analysis require pre-treatment. The fundamental step in sample pretreatment is the extraction of the compounds of interest from the sample matrix. This is the least evolved and most error-prone step in the overall analytical procedure as many people still use the Soxhlet method invented in 1879. The new Milestone ETHOS X is an advanced microwave extraction system offering the best technology currently available for GC, GC-MS and HPLC sample preparation.buy cheap Keflex online binary option pair trading simulator High sample throughput
binär optionen forum The overall concept of the ETHOS X for environmental applications has been developed looking at the working routine of several thousands contract laboratories around the world performing solvent extraction, with the aim of helping them, by offering an integrated solution able to render their activity easier, faster and safer. The ETHOS X processes more samples in less time and uses a fraction of the solvent required by other technologies.
It is very simple to use and, following an already established US EPA and ASTM methods, it assures consistent results with a minimal running cost.
http://jaholtom.com/?binarit=miglio-operazioni-binarie&030=33 miglio operazioni binarie The traditional fat extraction methods are very labour intensive and time-consuming. Large amounts of solvents are required to remove fat from the sample matrix, resulting in very high running costs.
As an example, conventional fat extraction of pretreated cheese usually requires 3 hours and over 100 mL of solvent per sample. Therefore, the standard fat extraction methods are not time- and cost efficient. Furthermore they expose laboratory technicians to dangerous solvents.
To overcome these limitations, Milestone has developed a fast yet accurate microwave-based technology which allows the chemist to carry out the simultaneous total fat determination in 12 milk and milk products samples in just 90 minutes, with equivalent results of those obtained with reference methods.
fare trading conviene The analytical procedure for essential oils and aromas from plants or spices comprises two steps: extraction by steam distillation or hydro-distillation, and analysis by GC or GC-MS. While the analysis step requires just few minutes, extraction takes at least several hours. Even today the standard procedure is based on the Clevenger method, which dates back to 1928! To address the limitations of this nearly 90-old technology, Milestone has developed the new ETHOS X for the Microwave Green Extraction of Natural Products.
Available in two different and interchangeable configurations, for fragrances and for flavors, the ETHOS X takes advantage of the unique microwave selective heating mechanism.