Oct 15 2009 01:28 PMSPE, Flash, TLC, MPLC, LPLC, Affinity
Disposable Pipette tip Extraction - Leaner, Greener Sample Preparation
There is much talk of green chemistry at the moment. There are various ways of achieving “greener” chemistry, but as scientists we all have to accept that chemistry by default, can never be entirely “green”. Solid Phase Extraction (SPE) has largely replaced Liquid:
Liquid extraction in many labs, greatly reducing solvent consumption and one way of getting closer to this goal is to reduce the amount of solvent required in SPE. An area where SPE often falls down is in the time taken for a particular extraction. So a technology that reduces solvent consumption and speeds up the extraction process must be appealing. Typically, SPE is carried out in either disposable syringe bodies of various sizes or in the 96 well plate format. Both are automatable, but both have disadvantages, in that they only accommodate flow in a single direction. Traditional SPE is scalable, but tends to require relatively large volumes of solvent and is relatively slow. 96 well plate extraction demands that you have 96 samples, or the proportion of the wells not used is usually wasted.
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