Part No: TN-0021.0207Issued year: 2007File size: 0.34mbFile type: pdf
Resins are usually described as one of 2 main types, Gel (PS) or macroporous (MP).
The gel resins have a low cross-linking and need to swell to allow access to their
functional groups. Therefore, they are very effective in transformations requiring
swelling organic aprotic solvents such as DCM, THF, Dioxane etc. Conversely, MP
resins are more highly cross-linked with more of a permanent open pore structure,
so they do not require swelling in such solvents for effective performance. As a
result, MP resins are compatible with a wider range of solvents than PS resins and
perform better in solvents such as water, MeOH and MeCN. Resins are generally
stable and can be stored indefinitely under cool dry conditions. For longer term
storage standard refrigeration (4 °C) is recommended.
Biotage offers the widest range of solvent evaporation systems available. This guide presents the most suitable evaporation system for your research requirements, and answers common questions regarding service, maintenance and applications.
Keywords: turbovap, turbo vap, v10, v-10, spedry, spe dry, evaporation, concentrat
Part No: AN048-HORIssued year: 2009File size: 0.64mbFile type: pdf
The analysis of pesticides for environmental extracts typically requires a solvent exchange from dichloromethane (DCM) to an ECD compatible solvent such as nhexane. The prescribed method of solvent exchange and concentration is given in EPA Method 3510 and uses a Kudera-Danish(KD) apparatus to achieve the results.
Part No: AN037Issued year: 2001File size: 0.13mbFile type: pdf
Activated carbon is an adsorbent media used to remove colored compounds from solution. Using carbon in a packed bed, such as the Biotage FLASH-AC cartridge improves adsorbent performance. The key variable in optimizing the decolorization process is the solvent system. Varying the solvent system impacts the adsorbent capacity of the cartridge, affecting both the yield and purity of the product. Biotage FLASH-AC cartridges tolerate a wide range of process solvents. This note discusses solvent choice as a process variable and how it contributes to significant process improvement and reduces the total cost of operation.
Part No: IST1080Issued year: 2006File size: 0.1mbFile type: pdf
SPE Application for the Multiresidue Extraction and Clean Up from Fruit and Vegetables. The method can be used for the extraction of a range of commodities (fresh fruits and
vegetables) and is suitablefor analysis of organophosphorus, organochlorine and carbamate pesticide types, using a variety of appropriate analytical techniques.
Part No: IST1057AIssued year: 1999File size: 0.07mbFile type: pdf
The following method addresses the extraction of 6-monoacetyl morphine from urine using
non-polar and strong cation exchange retention mechanisms. This compound can confirm
heroine use since it is a heroine metabolite, but not a metabolite of codeine or morphine
Part No: AN-IST1002AIssued year: 2008File size: 0.04mbFile type: pdf
This method has been optimized for the extraction of cocaine and benzoylecgonine from urine for drugs of abuse applications. Typical recoveries of these drugs are > 85%. The procedure may be applied to plasma, serum or whole blood with suitable modifications.
Part No: IST1006AIssued year: 2008File size: 0.04mbFile type: pdf
This method is suitable for the extraction of a wide range of analytes, as defined in EPA methods 525.2 and 8080, from water using a non-polar retention mechanism. These include PAHs, triazine herbicides, organochlorine pesticides, phthalates and other extractables.