qEVoriginal / 70nm - 5 Pack
qEVoriginal / 70nm SEC Columns for Exosomes Separation and Purification.
Our most popular qEV column, the qEVoriginal / 70nm contains a resin with an approximately 70 nm pore size. Proteins and other contaminating molecules smaller than 70nm enter the pores of the resin and are delayed in their passage through the column, eluting in later fractions. The use of qEV columns leads to higher quality Exosome measurements and analysis when combined with TRPS measurements.
Removal of proteins
Under ideal conditions, SEC purification of vesicles is able to remove >99% of contaminating free proteins.
Removal of lipids
A significant problem with ultracentrifugation is that the similar density of HDL and LDL particles to Exosomes means that the particles often co-isolate with Exosomes. The collection of appropriate fractions from qEVoriginal separation results in up to 95% removal of contaminating HDL from Exosome samples.
Reproducibility of purification
qEVoriginal columns have undergone extensive research and development to ensure that the separation does not introduce any bias into the sample.
qEVoriginal columns may be used up to 5 times, with a cleaning step in between uses, making their use very cost effective compared to all other separation options.
qEVoriginals are presently 10 ml volume, targeted at 500 μL of loading volume.
All of our qEV columns are certified to ISO 13485, the quality assurance standard for medical devices, which is an essential requirement.
Also available in the 35nm+ series, this 70nm+ column has an optimal recovery range of 70nm to 1000nm.
For a proper comparison of the qEV columns available, please visit our Exosome Isolation page.
Product Code: SP1