Borate storage buffer and sample diluent

G - Physics – 01 – N

Patent

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Details

G01N 27/447 (2006.01) G01N 1/38 (2006.01) G01N 33/531 (2006.01) G01N 33/564 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2228520

A composition, which has utility as a storage buffer and as a sample diluent before analysis by capillary zone electrophoresis (CZE), is comprised of water, a borate compound, a buffer compound and a pH modifier for maintaining a physiological pH. In addition, a conductivity adjusting compound is present so that the conductivity of the composition is about the same as a prospective capillary electrophoresis running buffer. Containers with storage buffer/sample diluent can be assembled in a kit for conducting serum protein electrophoresis (SPE) or immunosubtraction (IFE/s) analysis. Moreover, the storage buffer/sample diluent can be used in methods of preparing samples for CZE analysis, such as quantitative dilutions and enzymatic or immunological reactions.

Cette invention concerne une composition utile en tant que tampon de stockage et de diluant d'échantillon en vue d'une analyse par électrophorèse de zone capillaire. Cette composition contient de l'eau, un composé de borate, un composé tampon, ainsi qu'un modificateur de pH afin de maintenir un pH physiologique. Un composé d'ajustement de la conductivité est également ajouté de manière à ce que la conductivité de la composition soit approximativement la même que celle du tampon servant à une électrophorèse capillaire prospective. Des contenants comprenant les tampons de stockage/diluant d'échantillon peuvent être assemblés en un nécessaire permettant d'effectuer une électrophorèse des protéines du sérum ou une analyse de soustraction immunologique. Les tampons de stockage/diluant d'échantillon peuvent en outre être utilisés dans des procédés de préparation d'échantillons en vue d'une analyse par électrophorèse de zone capillaire, tel que dans des dilutions quantitatives et des réactions enzymatiques ou immunologiques.

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