Method and apparatus for separating polynucleotides using...

B - Operations – Transporting – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B01D 15/08 (2006.01) B01D 15/36 (2006.01) B01J 20/26 (2006.01) C07K 1/36 (2006.01) C12N 15/10 (2006.01) G01N 30/02 (2006.01) G01N 30/52 (2006.01)

Patent

CA 2397743

Methods and devices based on capillary monolithic columns, preferably consisting of an underivatized poly(styrene-divinylbenzene) monolith, for separating a mixture of polynucleotides by ion pair-reverse phase-high performance chromatography (IP-RP-HPLC). In various aspects of the method and device the monolith is characterized by one or more of the following: the monolith is contained within a capillary tube; the monolith is immobilized by covalent attachment at the inner wall of the tube; the tube is devoid of retaining frits; the monolith is characterized by having above 10,000 theoretical plates per meter and preferably above 200,000 theoretical plates per meter; the method uses a mobile phase which is devoid of EDTA; the monolith has a surface morphology that is rugulose or brush-like; the chromatographic surfaces of the monolith are non-porous; the monolith has channels sufficiently large for convective flow of the mobile phase; the monolith is formed from a polymerization mixture including underivatized styrene, a crosslinking agent, and a porogen, wherein the porogen includes tetrahydrofuran. The monolith can be incorporated into a miniaturized chromatography system which can be coupled to a mass spectrometer for on-line separation and mass determination of single- or double-stranded polynucleotides.

L'invention concerne des procédés et des dispositifs utilisant des colonnes capillaires monolithiques constituées, de préférence, d'un monolithe poly(styrène-divinylbenzène) non dérivé, pour séparer un mélange de polynucléotides par chromatographie de paires d'ions en phase inverse haute performance (IP-RP-HPLC). Dans divers aspects du procédé et du dispositif, le monolithe est caractérisé par un ou plusieurs des points suivants: le monolithe est logé dans un tube capillaire; le monolithe est immobilisé par fixation covalente au niveau de la paroi intérieure du tube; le tube est exempt de frittes de retenue; le monolithe est caractérisé en ce qu'il comporte plus de 10 000 plateaux théoriques par mètre et, de préférence, plus de 200 000 plateaux théoriques par mètre; le procédé utilise une phase mobile exempte d'EDTA; le monolithe a une morphologie de surface ruguleuse ou du type brosse; les surfaces chromatographiques du monolithe sont non poreuses; le monolithe comporte des passages suffisamment grands pour permettre le flux convectionnel de la phase mobile; le monolithe est formé à partir d'un mélange de polymérisation comprenant un styrène non dérivé, un agent de réticulation, et un agent porogène, ledit agent porogène renfermant un tétrahydrofuranne. Ledit monolithe peut être incorporé à un système de chromatographie miniature que l'on peut coupler à un spectromètre de masse, en vue de la séparation en ligne et de la détermination de masse des polynucléotides simple ou double brin.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for separating polynucleotides using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for separating polynucleotides using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for separating polynucleotides using... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1468914

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.